css+div 在指定位置创造层
日期：2014-05-17 浏览次数：20813 次
css+div 在指定位置创建层
<head>
<script language="javascript">
function findPosX(obj){
var curleft = 0;
if (obj.offsetParent){
while (obj.offsetParent){
curleft += obj.offsetLeft
obj = obj.offsetParent;
}
} else if (obj.x){
curleft += obj.x;
}
return curleft;
}
function findPosY(obj){
var curtop = 0;
if (obj.offsetParent){
while (obj.offsetParent){
curtop += obj.offsetTop
obj = obj.offsetParent;
}
} else if (obj.y){
curtop += obj.y;
}
return curtop;
}
function autocomplete (){
theObject = document.getElementById("autocompletediv");
theObject.style.position = "absolute";
theObject.style.visibility = "visible";
theObject.style.border="1px red solid";
theObject.style.width = "152px";
var posx = 0;
var posy = 0;
posx = (findPosX (document.getElementById("yourname")) + 1);
posy = (findPosY (document.getElementById("yourname")) + 23);
theObject.style.left = posx + "px";
theObject.style.top = posy + "px";
var str = "12222222222<br>33333333<BR>444444444\n";
theObject.innerHTML = str;
}
</script>
</head>
<body>
用户名:<input type="text" id="yourname" name="yourname">
<input type="button" onclick="javascript:autocomplete();" value="click">
<div id="autocompletediv" style="visibility:hidden;"></div>
</body>
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