js 创建一个浮动div的代码

//关闭DIV MENU
function MenuClose()
{
var MenuDiv = document.getElementById("MenuDiv");
if(MenuDiv != null)
{
document.body.removeChild(MenuDiv);
}
}
//创建menu
function MenuPanel(opflag,operid, left, top)
{
var MenuDiv = document.getElementById("MenuDiv");
if(MenuDiv != null)
{
document.body.removeChild(MenuDiv);
}

var useflag = "停用帐号";
var flag=opflag;
if (flag == "0")
{
useflag = "停用帐号";
}
else
{
useflag = "激活帐号";
}
MenuDiv = document.createElement("div");
MenuDiv.id = "MenuDiv";
MenuDiv.onmouseleave = function()
{
MenuClose();
}
MenuDiv.style.position = "absolute";
MenuDiv.style.setAttribute("zIndex" ,"201");
MenuDiv.style.setAttribute("backgroundColor" ,"#EFEFEF");
MenuDiv.style.setAttribute("Font" ,"10pt");
MenuDiv.style.setAttribute("width" ,60);
MenuDiv.style.setAttribute("left" ,left);
MenuDiv.style.setAttribute("top" ,top);
MenuDiv.innerHTML = ""
+""+useflag+""
+"修改帐号"
+"重设密码"
+"角色管理"
+"删除帐号"
+"";
document.body.appendChild(MenuDiv);
}
//获取控件的高度和宽度
function getAbsolutePos(e)
{
var t=e.offsetTop;
var l=e.offsetLeft;
while(e=e.offsetParent)
{
t+=e.offsetTop;
l+=e.offsetLeft;
}

var pos = { x: l, y: t };
return pos;
}

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