<HEAD>
<TITLE>JS获取DIV相对坐标</TITLE>
<scripttype="text/javascript"><!--
functiongetX(obj){
varparObj=obj;
varleft=obj.offsetLeft;
while(parObj=parObj.offsetParent){
left+=parObj.offsetLeft;
}
returnleft;
}
functiongetY(obj){
varparObj=obj;
vartop=obj.offsetTop;
while(parObj=parObj.offsetParent){
top+=parObj.offsetTop;
}
returntop;
}
functionDisplayCoord(event){
vartop,left,oDiv;
oDiv=document.getElementById("demo");
top=getY(oDiv);
left=getX(oDiv);
document.getElementById("mp_x").innerHTML=(event.clientX-left+document.documentElement.scrollLeft)-2+"px";
document.getElementById("mp_y").innerHTML=(event.clientY-top+document.documentElement.scrollTop)-2+"px";
}
//--></script>
</HEAD>
<BODYstyle="margin:40px;"mce_style="margin:40px;">
<divstyle="background-color:#000000;color:#0011FF;width:300px;height:300px;position:absolute;top:80px;left:90px;margin:0px;border:0px;"id="demo"onmousemove="DisplayCoord(event)">
我是DIV,经测试,有2PX的误差...
</div>
当前鼠标坐标为:
X:<spanid="mp_x"></span>
Y:<spanid="mp_y"></span>
</body>
</BODY>
</HTML>
如果不对,可以试试将
document.documentElement.scrollLeft
替换成
document.body.scrollLeft
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