<script type="text/javascript"> <!-- window.onload=function(){ objDiv = document.getElementById('drag'); drag(objDiv); }; function drag(dv){ dv.onmousedown=function(e){ var d=document; e = e || window.event; var x= e.layerX || e.offsetX; var y= e.layerY || e.offsetY; //设置捕获范围 if(dv.setCapture){ dv.setCapture(); }else if(window.captureEvents){ window.captureEvents(Event.MOUSEMOVE | Event.MOUSEUP); } d.onmousemove=function(e){ e= e || window.event; if(!e.pageX)e.pageX=e.clientX; if(!e.pageY)e.pageY=e.clientY; var tx=e.pageX-x; var ty=e.pageY-y; dv.style.left=tx; dv.style.top=ty; }; d.onmouseup=function(){ //取消捕获范围 if(dv.releaseCapture){ dv.releaseCapture(); }else if(window.captureEvents){ window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP); } //清除事件 d.onmousemove=null; d.onmouseup=null; }; }; } //--> </script> <div id="drag" style="position:absolute;left:12px;top:24px;width:100;height:150;border:1px solid #000000;z-index:1;background:#eeeeee">drag me</div>