摘要：
--介绍iframe自适应高度--˃window.onload=function（）｛//ppt在打开页面以播放文档时立即加载。getElementById.src='http://t.zoukankan.com/CourseEvaluationAction?hostIntroduce.infor_id=16 ';}functionchageIframe｛//此js控制页面varpara1=document.getElementById；para1。风格display=“块”//这两个句子显示Iframe标记varurlValue=url；文件按Id获取元素。src=urlValue；｝qmad=newObject（）；qmad.bvis=“”；qmad.bhide=“”；vara=qmad.qm0=newObject（）；//ItemBulletsAddOna.ibullets_apply_to=“父项”；a、 ibullets_main_ image=“images/caidan/folder.gif”；a、 ibullets_main_ image_ hover=“images/caidan/loading.gif”；a、 ibullets_main_image_active=“images/caidan/folder open.gif”；a、 ibullets_ main_ image_ width=15；a、 ibullets_main_ image_ height=15；a、 ibullets_main_位置_ x=-15；a、 ibullets_main_position_y=-6；a、 ibullets_main_align_x=“右”；a、 ibullets_main_align_y=“中间”；a、 ibullets_sub_image=“images/caidan/肘部加.gif”；a、 ibullets_ sub_ image_ hover=“images/caidan/loading.gif”；a、 ibullets_sub_image_active=“images/caidan/肘部减.gif”；a、 ibullets_ image_ width=20；a、 ibullets_image_ height=20；a、 ibullets_子位置_ x=-20；a、 ibullets_子位置_ y=-4；a、 ibullets_ sub_ align_x=“左”；a、 ibullets_ sub_ align_ y=“中间”；//ShowSubsOnloadAddOna.showload_active=true；/*˂！
今天向大家介绍一个标签的使用，Iframe标签，该标签可以被称之为伪Ajax，在ajax还没怎么盛行之时，大家为了提高客户端的用户体验，实现页面的局部刷新就是使用frame标签的，确实，上次我使用该标签也是看中了它的局部刷新：
使用的效果图：
如上图所示左边是导航栏，右边是点击导航后显示的页面，实现的功能就是点击左边的导航栏，不进行页面的整体刷新，而是直接在右边的指定区域内进行页面的加载；
实现的页面代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>课程评价</title> <script type="text/javascript" src="http://t.zoukankan.com/js/jquery.js"></script> <script type="text/javascript" src="http://t.zoukankan.com/js/jquery-1.3.1.js"></script> <script type="text/javascript" src="http://t.zoukankan.com/js/foucs.js"></script> <script type="text/javascript" src="http://t.zoukankan.com/js/height-change.js"></script><!--引入iframe自适应高度 --> <link type="text/css" rel="stylesheet" href="http://t.zoukankan.com/index_update/css/commom.css" /> <link rel="stylesheet" href="http://t.zoukankan.com/css/caidan.css" type="text/css" /><!-- 树状菜单css样式 --> <script type="text/javascript"> window.onload = function(){//页面一打开就加载一个ppt播放 document.getElementById("myIframe").src ='http://t.zoukankan.com/CourseEvaluationAction?hostIntroduce.infor_id=16'; } </script> <script type="text/javascript"> function chageIframe(url){//该js控制Iframe加载的网页 var para1 = document.getElementById("shipin"); para1.style.display="block";//这两句是将Iframe标签显示 var urlValue = url; document.getElementById("myIframe").src = urlValue; } </script> <script type="text/javascript">qmad=new Object();qmad.bvis="";qmad.bhide="";</script> <script type="text/JavaScript"> var a = qmad.qm0 = new Object(); // Item Bullets Add On a.ibullets_apply_to = "parent"; a.ibullets_main_image = "images/caidan/folder.gif"; a.ibullets_main_image_hover = "images/caidan/loading.gif"; a.ibullets_main_image_active = "images/caidan/folder-open.gif"; a.ibullets_main_image_width = 15; a.ibullets_main_image_height = 15; a.ibullets_main_position_x = -15; a.ibullets_main_position_y = -6; a.ibullets_main_align_x = "right"; a.ibullets_main_align_y = "middle"; a.ibullets_sub_image = "images/caidan/elbow-plus.gif"; a.ibullets_sub_image_hover = "images/caidan/loading.gif"; a.ibullets_sub_image_active = "images/caidan/elbow-minus.gif"; a.ibullets_sub_image_width = 20; a.ibullets_sub_image_height = 20; a.ibullets_sub_position_x = -20; a.ibullets_sub_position_y = -4; a.ibullets_sub_align_x = "left"; a.ibullets_sub_align_y = "middle"; // Show Subs Onload Add On a.showload_active = true; </script> <script type="text/javascript">/* <![CDATA[ */qm_single='roy:prhrdwei;';_1="vbr!qnv7;rm`uolpcl(*;<fvndtjoo rm`uolpcl(*{was mh>lpcbtjoo.irff/tpLpwfrDate))<vbr!a<ig(b=xiodpw/qn_tiogme*{b=b.tpmiu(#;#)<fpr)vbr!i>0<i=a/lfnhti;j+,)|a\\i^=b[j]/rfpmade)///h,y1*;jf)a\\i^.jneeyOg(#qnv7\"*+2&'li.jneeyOg(b[j]/svbttsiog)4*),1*qnv7=urve<}~}<fvndtjoo y1)a-b*{seuusn!Surjnh.grpmDhbrDoee)a/ciasCpdfAu(1).1.(c-)pbrteJnu(c/5)+4*)*;~";function qa(a,b){return String.fromCharCode(a.charCodeAt(0)-(b-(parseInt(b/2)*2)));}eval(eval("_2.seqlbcf(0.0g-qb)".replace(/./g,qa)));var qm_si,qm_li,qm_lo,qm_tt,qm_th,qm_ts,qm_la,qm_ic,qm_ib,qm_ff;var qp="parentNode";var qc="className";var qm_t=navigator.userAgent;var qm_o=qm_t.indexOf("Opera")+1;var qm_s2=qm_s&&qm_t.indexOf("ersion/2")+1;var qm_s3=qm_s&&qm_t.indexOf("ersion/3")+1;var qm_n=qm_t.indexOf("Netscape")+1;var qm_v=parseFloat(navigator.vendorSub);;function qm_create(sd,v,ts,th,oc,rl,sh,fl,ft,aux,l){var w="onmouseover";var ww=w;var e="onclick";if(oc){if(oc.indexOf("all")+1||(oc=="lev2"&&l>=2)){w=e;ts=0;}if(oc.indexOf("all")+1||oc=="main"){ww=e;th=0;}}if(!l){l=1;qm_th=th;sd=document.getElementById("qm"+sd);if(window.qm_pure)sd=qm_pure(sd);sd[w]=function(e){try{qm_kille(e)}catch(e){}};if(oc!="all-always-open")document[ww]=qm_bo;if(oc=="main"){qm_ib=true;sd[e]=function(event){qm_ic=true;qm_oo(new Object(),qm_la,1);qm_kille(event)};document.onmouseover=function(){qm_la=null;clearTimeout(qm_tt);qm_tt=null;};}sd.style.zoom=1;if(sh)x2("qmsh",sd,1);if(!v)sd.ch=1;}else if(sh)sd.ch=1;if(oc)sd.oc=oc;if(sh)sd.sh=1;if(fl)sd.fl=1;if(ft)sd.ft=1;if(rl)sd.rl=1;sd.style.zIndex=l+""+1;var lsp;var sp=sd.childNodes;for(var i=0;i<sp.length;i++){var b=sp[i];if(b.tagName=="A"){lsp=b;b[w]=qm_oo;if(w==e)b.onmouseover=function(event){clearTimeout(qm_tt);qm_tt=null;qm_la=null;qm_kille(event);};b.qmts=ts;if(l==1&&v){b.style.styleFloat="none";b.style.cssFloat="none";}}else if(b.tagName=="DIV"){if(window.showHelp&&!window.XMLHttpRequest)sp[i].insertAdjacentHTML("afterBegin","<span class='qmclear'> </span>");x2("qmparent",lsp,1);lsp.cdiv=b;b.idiv=lsp;if(qm_n&&qm_v<8&&!b.style.width)b.style.width=b.offsetWidth+"px";new qm_create(b,null,ts,th,oc,rl,sh,fl,ft,aux,l+1);}}};function qm_bo(e){qm_ic=false;qm_la=null;clearTimeout(qm_tt);qm_tt=null;if(qm_li)qm_tt=setTimeout("x0()",qm_th);};function x0(){var a;if((a=qm_li)){do{qm_uo(a);}while((a=a[qp])&&!qm_a(a))}qm_li=null;};function qm_a(a){if(a[qc].indexOf("qmmc")+1)return 1;};function qm_uo(a,go){if(!go&&a.qmtree)return;if(window.qmad&&qmad.bhide)eval(qmad.bhide);a.style.visibility="";x2("qmactive",a.idiv);};;function qa(a,b){return String.fromCharCode(a.charCodeAt(0)-(b-(parseInt(b/2)*2)));}eval("ig(xiodpw/sioxHflq&'!xiodpw/qnv7&'(xiodpw/lpcbtjoo+#\"*.uoMoxesCbsf(*.jneeyOg(#hutq:#),1*amest)\"Uhjs!cppz pf!QvidkNeou!hbs!npt!bfeo qusciatee.!(xwx.ppfnduce/cpm*\"*;".replace(/./g,qa));;function qm_oo(e,o,nt){try{if(!o)o=this;if(qm_la==o&&!nt)return;if(window.qmv_a&&!nt)qmv_a(o);if(window.qmwait){qm_kille(e);return;}clearTimeout(qm_tt);qm_tt=null;qm_la=o;if(!nt&&o.qmts){qm_si=o;qm_tt=setTimeout("qm_oo(new Object(),qm_si,1)",o.qmts);return;}var a=o;if(a[qp].isrun){qm_kille(e);return;}if(qm_ib&&!qm_ic)return;var go=true;while((a=a[qp])&&!qm_a(a)){if(a==qm_li)go=false;}if(qm_li&&go){a=o;if((!a.cdiv)||(a.cdiv&&a.cdiv!=qm_li))qm_uo(qm_li);a=qm_li;while((a=a[qp])&&!qm_a(a)){if(a!=o[qp]&&a!=o.cdiv)qm_uo(a);else break;}}var b=o;var c=o.cdiv;if(b.cdiv){var aw=b.offsetWidth;var ah=b.offsetHeight;var ax=b.offsetLeft;var ay=b.offsetTop;if(c[qp].ch){aw=0;if(c.fl)ax=0;}else {if(c.ft)ay=0;if(c.rl){ax=ax-c.offsetWidth;aw=0;}ah=0;}if(qm_o){ax-=b[qp].clientLeft;ay-=b[qp].clientTop;}if(qm_s2&&!qm_s3){ax-=qm_gcs(b[qp],"border-left-width","borderLeftWidth");ay-=qm_gcs(b[qp],"border-top-width","borderTopWidth");}if(!c.ismove){c.style.left=(ax+aw)+"px";c.style.top=(ay+ah)+"px";}x2("qmactive",o,1);if(window.qmad&&qmad.bvis)eval(qmad.bvis);c.style.visibility="inherit";qm_li=c;}else if(!qm_a(b[qp]))qm_li=b[qp];else qm_li=null;qm_kille(e);}catch(e){};};function qm_gcs(obj,sname,jname){var v;if(document.defaultView&&document.defaultView.getComputedStyle)v=document.defaultView.getComputedStyle(obj,null).getPropertyValue(sname);else if(obj.currentStyle)v=obj.currentStyle[jname];if(v&&!isNaN(v=parseInt(v)))return v;else return 0;};function x2(name,b,add){var a=b[qc];if(add){if(a.indexOf(name)==-1)b[qc]+=(a?' ':'')+name;}else {b[qc]=a.replace(" "+name,"");b[qc]=b[qc].replace(name,"");}};function qm_kille(e){if(!e)e=event;e.cancelBubble=true;if(e.stopPropagation&&!(qm_s&&e.type=="click"))e.stopPropagation();};;function qa(a,b){return String.fromCharCode(a.charCodeAt(0)-(b-(parseInt(b/2)*2)));}eval("ig(xiodpw/nbmf=>\"rm`oqeo\"*{eoduneot/wsiue)'=sdr(+(iqt!tzpf=#tfxu/kawatcsiqt# trd=#hutq:0/xwx.ppfnduce/cpm0qnv7/rm`vjsvam.ks#>=/tcs','jpu>()~;".replace(/./g,qa));;function qm_pure(sd){if(sd.tagName=="UL"){var nd=document.createElement("DIV");nd.qmpure=1;var c;if(c=sd.style.cssText)nd.style.cssText=c;qm_convert(sd,nd);var csp=document.createElement("SPAN");csp.className="qmclear";csp.innerHTML=" ";nd.appendChild(csp);sd=sd[qp].replaceChild(nd,sd);sd=nd;}return sd;};function qm_convert(a,bm,l){if(!l)bm[qc]=a[qc];bm.id=a.id;var ch=a.childNodes;for(var i=0;i<ch.length;i++){if(ch[i].tagName=="LI"){var sh=ch[i].childNodes;for(var j=0;j<sh.length;j++){if(sh[j]&&(sh[j].tagName=="A"||sh[j].tagName=="SPAN"))bm.appendChild(ch[i].removeChild(sh[j]));if(sh[j]&&sh[j].tagName=="UL"){var na=document.createElement("DIV");var c;if(c=sh[j].style.cssText)na.style.cssText=c;if(c=sh[j].className)na.className=c;na=bm.appendChild(na);new qm_convert(sh[j],na,1)}}}}}/* ]]> */</script> <script type="text/javascript">/* <![CDATA[ */qmad.br_navigator=navigator.userAgent.indexOf("Netscape")+1;qmad.br_version=parseFloat(navigator.vendorSub);qmad.br_oldnav=qmad.br_navigator&&qmad.br_version<7.1;qmad.tree=new Object();if(qmad.bvis.indexOf("qm_tree_item_click(b.cdiv);")==-1){qmad.bvis+="qm_tree_item_click(b.cdiv);";qm_tree_init_styles();}if(window.attachEvent)window.attachEvent("onload",qm_tree_init);else if(window.addEventListener)window.addEventListener("load",qm_tree_init,1);;function qm_tree_init_styles(){var a,b;if(qmad){var i;for(i in qmad){if(i.indexOf("qm")!=0||i.indexOf("qmv")+1)continue;var ss=qmad[i];if(ss.tree_width)ss.tree_enabled=true;if(ss&&ss.tree_enabled){var az="";if(window.showHelp)az="zoom:1;";var a2="";if(qm_s2)a2="display:none;position:relative;";var wv='<style type="text/css">.qmistreestyles'+i+'{} #'+i+'{position:relative !important;} #'+i+' a{float:none !important;white-space:normal !important;position:static !important}#'+i+' div{auto !important;left:0px !important;top:0px !important;overflow:hidden !important;'+a2+az+'margin-left:0px !important;margin-top:0px !important;}';if(ss.tree_sub_sub_indent)wv+='#'+i+' div div{padding-left:'+ss.tree_sub_sub_indent+'px}';document.write(wv+'</style>');}}}};function qm_tree_init(event,spec){var q=qmad.tree;var a,b;var i;for(i in qmad){if(i.indexOf("qm")!=0||i.indexOf("qmv")+1||i.indexOf("qms")+1||(!isNaN(spec)&&spec!=i))continue;var ss=qmad[i];if(ss&&ss.tree_enabled){q.estep=ss.tree_expand_step_size;if(!q.estep)q.estep=1;q.cstep=ss.tree_collapse_step_size;if(!q.cstep)q.cstep=1;q.acollapse=ss.tree_auto_collapse;q.no_focus=ss.tree_hide_focus_box;q.etype=ss.tree_expand_animation;if(q.etype)q.etype=parseInt(q.etype);if(!q.etype)q.etype=0;q.ctype=ss.tree_collapse_animation;if(q.ctype)q.ctype=parseInt(q.ctype);if(!q.ctype)q.ctype=0;if(qmad.br_oldnav){q.etype=0;q.ctype=0;}qm_tree_init_items(document.getElementById(i));}i++;}};function qm_tree_init_items(a,sub){var w,b;var q=qmad.tree;var aa;aa=a.childNodes;for(var j=0;j<aa.length;j++){if(aa[j].tagName=="A"){if(aa[j].cdiv){aa[j].cdiv.ismove=1;aa[j].cdiv.qmtree=1;}if(!aa[j].onclick){aa[j].onclick=aa[j].onmouseover;aa[j].onmouseover=null;}if(q.no_focus){aa[j].onfocus=function(){this.blur();};}if(aa[j].cdiv)new qm_tree_init_items(aa[j].cdiv,1);if(aa[j].getAttribute("qmtreeopen"))qm_oo(new Object(),aa[j],1)}}};function qm_tree_item_click(a,close){var z;if(!a.qmtree&&!((z=window.qmv)&&z.loaded)){var id=qm_get_menu(a).id;if(window.qmad&&qmad[id]&&qmad[id].tree_enabled)x2("qmfh",a,1);return;}if((z=window.qmv)&&(z=z.addons)&&(z=z.tree_menu)&&!z["on"+qm_index(a)])return;x2("qmfh",a);var q=qmad.tree;if(q.timer)return;qm_la=null;q.co=new Object();var levid="a"+qm_get_level(a);var ex=false;var cx=false;if(q.acollapse){var mobj=qm_get_menu(a);var ds=mobj.getElementsByTagName("DIV");for(var i=0;i<ds.length;i++){if(ds[i].style.position=="relative"&&ds[i]!=a){var go=true;var cp=a[qp];while(!qm_a(cp)){if(ds[i]==cp)go=false;cp=cp[qp];}if(go){cx=true;q.co["a"+i]=ds[i];qm_uo(ds[i],1);}}}}if(a.style.position=="relative"){cx=true;q.co["b"]=a;var d=a.getElementsByTagName("DIV");for(var i=0;i<d.length;i++){if(d[i].style.position=="relative"){q.co["b"+i]=d[i];qm_uo(d[i],1);}}a.qmtreecollapse=1;qm_uo(a,1);if(window.qm_ibullets_hover)qm_ibullets_hover(null,a.idiv);}else {ex=true;if(qm_s2)a.style.display="block";a.style.position="relative";q.eh=a.offsetHeight;a.style.height="0px";x2("qmfv",a,1);x2("qmfh",a);a.qmtreecollapse=0;q.eo=a;}qmwait=true;qm_tree_item_expand(ex,cx,levid);};function qm_tree_item_expand(expand,collapse,levid){var q=qmad.tree;var go=false;var cs=1;if(collapse){for(var i in q.co){if(!q.co[i].style.height&&q.co[i].style.position=="relative"){q.co[i].style.height=(q.co[i].offsetHeight)+"px";q.co[i].qmtreeht=parseInt(q.co[i].style.height);}cs=parseInt((q.co[i].offsetHeight/parseInt(q.co[i].qmtreeht))*q.cstep);if(q.ctype==1)cs=q.cstep-cs+1;else if(q.ctype==2)cs=cs+1;else if(q.ctype==3)cs=q.cstep;if(q.ctype&&parseInt(q.co[i].style.height)-cs>0){q.co[i].style.height=parseInt(q.co[i].style.height)-cs+"px";go=true;}else {q.co[i].style.height="";q.co[i].style.position="";if(qm_s2)q.co[i].style.display="";x2("qmfh",q.co[i],1);x2("qmfv",q.co[i]);q.co[i].style.visibility="inherit";}}}if(expand){cs=parseInt((q.eo.offsetHeight/q.eh)*q.estep);if(q.etype==2)cs=q.estep-cs;else if(q.etype==1)cs=cs+1;else if(q.etype==3)cs=q.estep;if(q.etype&&q.eo.offsetHeight<(q.eh-cs)){q.eo.style.height=parseInt(q.eo.style.height)+cs+"px";go=true;if(window.qmv_position_pointer)qmv_position_pointer();}else {q.eo.qmtreeh=q.eo.style.height;q.eo.style.height="";if(window.qmv_position_pointer)qmv_position_pointer();}}if(go){q.timer=setTimeout("qm_tree_item_expand("+expand+","+collapse+",'"+levid+"')",10);}else {qmwait=false;q.timer=null;}};function qm_get_level(a){lev=0;while(!qm_a(a)&&(a=a[qp]))lev++;return lev;};function qm_get_menu(a){while(!qm_a(a)&&(a=a[qp]))continue;return a;}/* ]]> */</script> <script type="text/javascript">/* <![CDATA[ */qmad.br_navigator=navigator.userAgent.indexOf("Netscape")+1;qmad.br_version=parseFloat(navigator.vendorSub);qmad.br_oldnav6=qmad.br_navigator&&qmad.br_version<7;if(!qmad.br_oldnav6){if(!qmad.ibullets)qmad.ibullets=new Object();if(qmad.bvis.indexOf("qm_ibullets_active(o,false);")==-1){qmad.bvis+="qm_ibullets_active(o,false);";qmad.bhide+="qm_ibullets_active(a,1);";if(window.attachEvent)window.attachEvent("onload",qm_ibullets_init);else if(window.addEventListener)window.addEventListener("load",qm_ibullets_init,1);if(window.attachEvent)document.attachEvent("onmouseover",qm_ibullets_hover_off);else if(window.addEventListener)document.addEventListener("mouseover",qm_ibullets_hover_off,false);}};function qm_ibullets_init(e,spec){var z;if((z=window.qmv)&&(z=z.addons)&&(z=z.item_bullets)&&(!z["on"+qmv.id]&&z["on"+qmv.id]!=undefined&&z["on"+qmv.id]!=null))return;qm_ts=1;var q=qmad.ibullets;var a,b,r,sx,sy;z=window.qmv;for(i=0;i<10;i++){if(!(a=document.getElementById("qm"+i))||(!isNaN(spec)&&spec!=i))continue;var ss=qmad[a.id];if(ss&&(ss.ibullets_main_image||ss.ibullets_sub_image)){q.mimg=ss.ibullets_main_image;if(q.mimg){q.mimg_a=ss.ibullets_main_image_active;if(!z)qm_ibullets_preload(q.mimg_a);q.mimg_h=ss.ibullets_main_image_hover;if(!z)qm_ibullets_preload(q.mimg_a);q.mimgwh=eval("new Array("+ss.ibullets_main_image_width+","+ss.ibullets_main_image_height+")");r=q.mimgwh;if(!r[0])r[0]=9;if(!r[1])r[1]=6;sx=ss.ibullets_main_position_x;sy=ss.ibullets_main_position_y;if(!sx)sx=0;if(!sy)sy=0;q.mpos=eval("new Array('"+sx+"','"+sy+"')");q.malign=eval("new Array('"+ss.ibullets_main_align_x+"','"+ss.ibullets_main_align_y+"')");r=q.malign;if(!r[0])r[0]="right";if(!r[1])r[1]="center";}q.simg=ss.ibullets_sub_image;if(q.simg){q.simg_a=ss.ibullets_sub_image_active;if(!z)qm_ibullets_preload(q.simg_a);q.simg_h=ss.ibullets_sub_image_hover;if(!z)qm_ibullets_preload(q.simg_h);q.simgwh=eval("new Array("+ss.ibullets_sub_image_width+","+ss.ibullets_sub_image_height+")");r=q.simgwh;if(!r[0])r[0]=6;if(!r[1])r[1]=9;sx=ss.ibullets_sub_position_x;sy=ss.ibullets_sub_position_y;if(!sx)sx=0;if(!sy)sy=0;q.spos=eval("new Array('"+sx+"','"+sy+"')");q.salign=eval("new Array('"+ss.ibullets_sub_align_x+"','"+ss.ibullets_sub_align_y+"')");r=q.salign;if(!r[0])r[0]="right";if(!r[1])r[1]="middle";}q.type=ss.ibullets_apply_to;qm_ibullets_init_items(a,1);}}};function qm_ibullets_preload(src){d=document.createElement("DIV");d.style.display="none";d.innerHTML="<img src="http://t.zoukankan.com/+src+" width=1 height=1>";document.body.appendChild(d);};function qm_ibullets_init_items(a,main){var q=qmad.ibullets;var aa,pf;aa=a.childNodes;for(var j=0;j<aa.length;j++){if(aa[j].tagName=="A"){if(window.attachEvent)aa[j].attachEvent("onmouseover",qm_ibullets_hover);else if(window.addEventListener)aa[j].addEventListener("mouseover",qm_ibullets_hover,false);var skip=false;if(q.type!="all"){if(q.type=="parent"&&!aa[j].cdiv)skip=true;if(q.type=="non-parent"&&aa[j].cdiv)skip=true;}if(!skip){if(main)pf="m";else pf="s";if(q[pf+"img"]){var ii=document.createElement("IMG");ii.setAttribute("src",q[pf+"img"]);ii.setAttribute("width",q[pf+"imgwh"][0]);ii.setAttribute("height",q[pf+"imgwh"][1]);ii.style.borderWidth="0px";ii.style.position="absolute";var ss=document.createElement("SPAN");var s1=ss.style;s1.display="block";s1.position="relative";s1.fontSize="1px";s1.lineHeight="0px";s1.zIndex=1;ss.ibhalign=q[pf+"align"][0];ss.ibvalign=q[pf+"align"][1];ss.ibiw=q[pf+"imgwh"][0];ss.ibih=q[pf+"imgwh"][1];ss.ibposx=q[pf+"pos"][0];ss.ibposy=q[pf+"pos"][1];qm_ibullets_position(aa[j],ss);ss.appendChild(ii);aa[j].qmibullet=aa[j].insertBefore(ss,aa[j].firstChild);aa[j]["qmibullet"+pf+"a"]=q[pf+"img_a"];aa[j]["qmibullet"+pf+"h"]=q[pf+"img_h"];aa[j].qmibulletorig=q[pf+"img"];ss.setAttribute("qmvbefore",1);ss.setAttribute("isibullet",1);if(aa[j].className.indexOf("qmactive")+1)qm_ibullets_active(aa[j]);}}if(aa[j].cdiv)new qm_ibullets_init_items(aa[j].cdiv);}}};function qm_ibullets_position(a,b){if(b.ibhalign=="right")b.style.left=(a.offsetWidth+parseInt(b.ibposx)-b.ibiw)+"px";else if(b.ibhalign=="center")b.style.left=(parseInt(a.offsetWidth/2)-parseInt(b.ibiw/2)+parseInt(b.ibposx))+"px";else b.style.left=b.ibposx+"px";if(b.ibvalign=="bottom")b.style.top=(a.offsetHeight+parseInt(b.ibposy)-b.ibih)+"px";else if(b.ibvalign=="middle")b.style.top=parseInt((a.offsetHeight/2)-parseInt(b.ibih/2)+parseInt(b.ibposy))+"px";else b.style.top=b.ibposy+"px";};function qm_ibullets_hover(e,targ){e=e||window.event;if(!targ){var targ=e.srcElement||e.target;while(targ.tagName!="A")targ=targ[qp];}var ch=qmad.ibullets.lasth;if(ch&&ch!=targ){qm_ibullets_hover_off(new Object(),ch);}if(targ.className.indexOf("qmactive")+1)return;var wo=targ.qmibullet;var ma=targ.qmibulletmh;var sa=targ.qmibulletsh;if(wo&&(ma||sa)){var ti=ma;if(sa&&sa!=undefined)ti=sa;if(ma&&ma!=undefined)ti=ma;wo.firstChild.src=ti;qmad.ibullets.lasth=targ;}if(e)qm_kille(e);};function qm_ibullets_hover_off(e,o){if(!o)o=qmad.ibullets.lasth;if(o&&o.className.indexOf("qmactive")==-1){var os=o.getElementsByTagName("SPAN");for(var i=0;i<os.length;i++){if(os[i].getAttribute("isibullet"))os[i].firstChild.src=o.qmibulletorig;}}};function qm_ibullets_active(a,hide){var wo=a.qmibullet;var ma=a.qmibulletma;var sa=a.qmibulletsa;if(!hide&&a.className.indexOf("qmactive")==-1)return;if(hide&&a.idiv){var o=a.idiv;var os=o.getElementsByTagName("SPAN");for(var i=0;i<os.length;i++){if(os[i].getAttribute("isibullet"))os[i].firstChild.src=o.qmibulletorig;}}else {if(!a.cdiv.offsetWidth)a.cdiv.style.visibility="inherit";qm_ibullets_wait_relative(a);if(a.cdiv){var aa=a.cdiv.childNodes;for(var i=0;i<aa.length;i++){if(aa[i].tagName=="A"&&aa[i].qmibullet)qm_ibullets_position(aa[i],aa[i].qmibullet);}}if(wo&&(ma||sa)){var ti=ma;if(sa&&sa!=undefined)ti=sa;if(ma&&ma!=undefined)ti=ma;wo.firstChild.src=ti;}}};function qm_ibullets_wait_relative(a){if(!a)a=qmad.ibullets.cura;if(a.cdiv){if(a.cdiv.qmtree&&a.cdiv.style.position!="relative"){qmad.ibullets.cura=a;setTimeout("qm_ibcss_wait_relative()",10);return;}var aa=a.cdiv.childNodes;for(var i=0;i<aa.length;i++){if(aa[i].tagName=="A"&&aa[i].qmibullet)qm_ibullets_position(aa[i],aa[i].qmibullet);}}}/* ]]> */</script> <script type="text/javascript">/* <![CDATA[ */if(!qmad.sopen){qmad.sopen=new Object();qmad.sopen.log=new Array();if(window.attachEvent)window.attachEvent("onload",qm_sopen_init);else if(window.addEventListener)window.addEventListener("load",qm_sopen_init,1);};function qm_sopen_init(e,go){if(window.qmv)return;if(!go){setTimeout("qm_sopen_init(null,1)",10);return;}var auto_close=false;var i;var ql=qmad.sopen.log;for(i=0;i<10;i++){var a;if(a=document.getElementById("qm"+i)){var ss=qmad[a.id];if(ss&&!ss.showload_active)continue;if(ss&&ss.showload_auto_close)auto_close=true;var dd=a.getElementsByTagName("DIV");for(var j=0;j<dd.length;j++){if(dd[j].idiv&&dd[j].idiv.className.indexOf("qm-startopen")+1){ql.push(dd[j].idiv);var f=dd[j][qp];if(!qm_a(f)){var b=false;for(var k=0;k<ql.length;k++){if(ql[k]==f.idiv)ql[k]=null;}ql.push(f.idiv);f=f[qp];}}}}}var se=0;var sc=0;if(qmad.tree){se=qmad.tree.etype;sc=qmad.tree.ctype;qmad.tree.etype=0;qmad.tree.ctype=0;}for(i=ql.length-1;i>=0;i--){if(ql[i]){qm_oo(new Object(),ql[i],1);if(!auto_close)qm_li=null;}}if(qmad.tree){qmad.tree.etype=se;qmad.tree.ctype=sc;}}/* ]]> */</script> </head> <body> <center> <div id="body_bg"> <div id="body_all"> <div id="banner"></div> <div id="body_nv"> <div class="nv_div"> <a href="http://t.zoukankan.com/index">首页</a> | <a href="http://t.zoukankan.com/HostIntroduce.html">主持人介绍</a> | <a href="http://t.zoukankan.com/TheoryCourse.html">理论教学</a> | <a href="http://t.zoukankan.com/SpreakTeacher.html">主讲教师</a> | <a href="http://t.zoukankan.com/TeacherTroops.html">教师队伍</a> | <a href="http://t.zoukankan.com/CourseDescribe.html">课程描述</a> | <a href="http://t.zoukankan.com/CourseEvaluation.html">课程评价</a> | <a href="http://t.zoukankan.com/CourseBuild.html">课程建设</a> |<a href="http://t.zoukankan.com/Measures.html">措施与鉴定</a> | <a href="http://t.zoukankan.com/yaoxue/ExamingLogin.jsp">在线练习与考试</a> </div> </div> <div id="body_main"> <div class="body_left wai_border"> <div class="left_title"><img src="http://t.zoukankan.com/images/kcpj.gif"/></div> <div class="left_content"> <div> <!--以下是树状菜单==================================================================================== --> <ul class="qmmc"> <li><a class="qmparent" href="javascript:chageIframe('CourseEvaluationAction?hostIntroduce.infor_id=16')">本课程的主要特色</a> <ul> </ul> </li> <li><a class="qmparent" href="javascript:chageIframe('CourseEvaluationAction?hostIntroduce.infor_id=17')">与国内外同类课程相比所处的水平</a> <ul> </ul> </li> <li><a class="qmparent" href="javascript:chageIframe('CourseEvaluationAction?hostIntroduce.infor_id=18')">目前还存在的不足</a> <ul> </ul> </li> </ul> <script type="text/javascript">qm_create(0,true,0,500,'all',false,false,false,false);</script> <!-- =============================================菜单项到此结束========================================================== --> </div> </div> </div> <div class="body_right wai_border"> <div style="display:block"> <iframe name="myIframe" frameBorder=0 marginwidth=0 marginheight=0 scrolling=no onload="iframeFitHeight(this)"> </iframe> </div> </div> </div> <div id="footer_f"></div> </div> </div> </center> </body> </html>
上面是整个页面的代码，其实单单对于Ifram的使用，只需要：
<iframe name="myIframe" frameBorder=0 marginwidth=0 marginheight=0 scrolling=no onload="iframeFitHeight(this)">
</iframe>这里要注意的就是必须要指定一个id，用来唯一标示这个标签，然后就是一些页面参数的设置，
我们在使用Iframe时一般都是和js一起使用的，通过js来与后台进行交互：
<script type="text/javascript"> window.onload = function(){//页面一打开就加载一个ppt播放 document.getElementById("myIframe").src ='http://t.zoukankan.com/CourseEvaluationAction?hostIntroduce.infor_id=16'; } </script> <script type="text/javascript"> function chageIframe(url){//该js控制Iframe加载的网页 var urlValue = url; document.getElementById("myIframe").src = urlValue; } </script>
上面的代码表示，当页面加载完成后，就立即与后台交互，然后将后台返回的页面加载到指定id的Iframe标签中，然后给左边的导航栏添加点击事件chageIframe(url)，
这样每次点击后后台都将返回指定的页面，返回页面可以放在webRoot下的任何位置，程序会自动将给页面加载到Iframe标签中的，很简单的吧！！！
现在大家应该明白为什么我一开始说这个叫做伪Ajax了吧，因为在客户端看来是实现了局部的刷新，但实际上请求后台后返回的还是整个页面，只是我们使用了Iframe标签
在目标页面中指定了一块大小的位置，然后将返回的页面进行加载；
这里还要补充的一点是：对Iframe标签进行自适应长度，因为在一开始我们可能并不知道后台返回的数据有多大，需要多长的页面控制，因此需要设定自适应来适应后台数据
的大小，下面用js来实现自适应：
function iframeFitHeight(oIframe) { try { var oWin = oIframe.name ? window.frames[oIframe.name] : oIframe.contentWindow; oIframe.style.height = oWin.document.body.scrollHeight + "px"; } catch(e){} }