function popdiv(str,msgw,msgh){
var bordercolor;
var titleheight=25;
var bordercolor="#CCCCCC";
var sWidth,sHeight;
sWidth=document.body.offsetWidth;
sHeight=screen.height;
var bgObj=document.createElement("div");
bgObj.setAttribute('id','bgDiv');
bgObj.style.position="absolute";
bgObj.style.top="0";
bgObj.style.background="#000000";
bgObj.style.opacity="0.5";
bgObj.style.filter = "alpha(opacity=50)";
bgObj.style.left="0";
bgObj.style.width=sWidth + "px";
bgObj.style.height=(document.body.scrollHeight)+ "px";
bgObj.style.zIndex = "10000";
document.body.appendChild(bgObj);
var msgObj=document.createElement("div")
msgObj.setAttribute("id","msgDiv");
msgObj.setAttribute("align","center");
msgObj.style.background="white";
msgObj.style.border="1px solid " + bordercolor;
msgObj.style.position = "absolute";
msgObj.style.left = "30%";
msgObj.style.top = "5%";
msgObj.style.marginLeft = "-"+(msgw/2)+"px";
msgObj.style.marginTop = -(msgh/2)+document.documentElement.scrollTop+"px";
msgObj.style.padding="0px";
msgObj.style.width = msgw + "px";
msgObj.style.height =msgh + "px";
msgObj.style.lineHeight =msgh + "px";
msgObj.style.textAlign = "center";
msgObj.style.zIndex = "10001";
msgObj.innerHTML=str;
document.body.appendChild(msgObj);}
function closediv(){document.body.removeChild(document.getElementById("bgDiv"));document.body.removeChild(document.getElementById("msgDiv"));}