层拖动效果

<!doctype html public "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title> 代码实例：拖动对象 Drag Object (兼容:IE、Firefox、Opera

)</title>

<!--<meta name="editor" content="枫岩,http://www.cnlei.com">

<style>

.dragAble {position:relative;cursor:move;}

</style>

<!--

// Author: Unkonw

// Modify: 枫岩@CnLei.com

var ie=document.all;

var nn6=document.getElementById&&!document.all;

var isdrag=false;

var y,x;

var oDragObj;

function moveMouse(e) {

if (isdrag) {

oDragObj.style.top = (nn6 ? nTY + e.clientY - y : nTY + event.clientY - y)+"px";

oDragObj.style.left = (nn6 ? nTX + e.clientX - x : nTX + event.clientX - x)+"px";

return false;

}

function initDrag(e) {

var oDragHandle = nn6 ? e.target : event.srcElement;

var topElement = "HTML";

while (oDragHandle.tagName != topElement && oDragHandle.className != "dragAble") {

oDragHandle = nn6 ? oDragHandle.parentNode : oDragHandle.parentElement;

}

if (oDragHandle.className=="dragAble") {

isdrag = true;

oDragObj = oDragHandle;

nTY = parseInt(oDragObj.style.top+0);

y = nn6 ? e.clientY : event.clientY;

nTX = parseInt(oDragObj.style.left+0);

x = nn6 ? e.clientX : event.clientX;

document.onmousemove=moveMouse;

return false;

}

document.onmousedown=initDrag;

document.onmouseup=new Function("isdrag=false");

//-->

</script>

</head>

<body>

<div style="border:1px solid #ff6d00;background:#ffd801;width:240px;padding:5px 0;" class="dragAble">这些都是可拖动对象</div>

</body>

</html>

posted @ 2007-07-17 20:10 星空竹月阅读(276) 评论(0) 收藏举报

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层拖动效果

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