function createobj() {  if (window.ActiveXObject) {          return(new ActiveXObject("Microsoft.XMLHTTP"));      }      else if (window.XMLHttpRequest) {          return(new XMLHttpRequest());      } } function personalInfo() {   var oBao=createobj();   var cont=document.getElementById("person_detial");   var cont_a=document.getElementById("person_content");   cont.style.display='block';   cont.style.cursor='pointer';   cont_a.innerHTML="请等待,加载中...";    var my_url="getinfo.asp?"+Math.random();   oBao.open("get",my_url,true);    oBao.onreadystatechange=function(){   if(oBao.readyState==4){    if(oBao.status==200){       cont_a.innerHTML=oBao.responseText;      }else{      cont_a.innerHTML="出现错误,错误代码为:"+oBao.status;     }     }   }   oBao.send();   } function Drag(id) { var self=this; this.obj=(typeof(id)=="string")?document.getElementById(id):id; this.obj.onmousedown=function(e) { e=e||window.event; var obj=self.obj;//指向自己 if(e.layerX){obj.position={x:e.layerX,y:e.layerY};} else{obj.position={x:e.offsetX,y:e.offsetY};} document.onmousemove=self.start; document.onmouseup=self.end; } this.start=function(e) { e=e||event; document.onselectstart = function(){ return false; }; window.getSelection && window.getSelection().removeAllRanges(); var obj=self.obj; obj.style.left=e.clientX-obj.position.x+"px"; obj.style.top=e.clientY-obj.position.y+"px"; } this.end=function(e) { e=e||event;  document.onmousemove = document.onmouseup = document.onselectstart = null;      } } [img]http://www.1sucai.cn/myeditor/sysimage/file/rar.gif[/img] [url=http://www.1sucai.cn/upload/20080807235144493.rar]AJAX简单应用实例-弹出层.rar[/url]