var docEle = function() 
{
    return document.getElementById(arguments[0]) || false;
}

function hideAllSelect(hSwitch) 
{ 
   if (hSwitch){
      var selects=document.getElementsByTagName("SELECT"); 
      for(var i=0;i <selects.length;i++){selects[i].style.display="none";} 
   }
   else
   {
      var selects=document.getElementsByTagName("SELECT"); 
      for(var i=0;i <selects.length;i++){selects[i].style.display="";}
    }
} 

function openNewDiv(_id)
{
	hideAllSelect(true);
	
	//alert(document.URL);
	//return false;
    var m = "mask";
    if (docEle(_id)) document.body.removeChild(docEle(_id));
    if (docEle(m)) document.body.removeChild(docEle(m));
    
    //mask遮罩层

    var newMask = document.createElement("div");
    newMask.id = m;
    newMask.style.position = "absolute";
    newMask.style.zIndex = "1";
    _scrollWidth = Math.min(document.body.scrollWidth,document.body.scrollWidth);
    _scrollHeight = Math.max(document.body.scrollHeight,document.body.scrollHeight);
    newMask.style.width = _scrollWidth + "px";
    newMask.style.height = _scrollHeight + "px";
    newMask.style.top = "0px";
    newMask.style.left = "0px";
    newMask.style.background = "#000";
    newMask.style.filter = "alpha(opacity=50)";
    newMask.style.opacity = "0.60";
    document.body.appendChild(newMask);
    
    //新弹出层

    var newDiv = document.createElement("div");
    newDiv.id = _id;
    newDiv.style.position = "absolute";
    newDiv.style.zIndex = "9999";
	newDivWidth = 260;
	newDivHeight = 160;
    newDiv.style.width = newDivWidth + "px";
    newDiv.style.height = newDivHeight + "px";
    newDiv.style.top = (document.body.scrollTop + document.body.clientHeight/2 - newDivHeight/2) + "px";
    newDiv.style.left = (document.body.scrollLeft + document.body.clientWidth/2 - newDivWidth/2) + "px";
    newDiv.style.background = "#FFFFFF";
    newDiv.style.border = "0px solid #860001";
    newDiv.style.padding = "0px";
	newDiv.innerHTML = '<table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td height="30" style="background-color:#EFAD00;"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td style="color:#FFFFFF; padding-left:8px; font-weight:bold;">会员登陆</td><td width="30"><a href="javascript:" onClick=CloseDialog("newDiv") style="color:#FFFFFF;"><img src="image/dialog1.gif" border="0"></a></td></tr></table></td></tr><tr><td><iframe src="" id="sendmailframe" name="sendmailframe" width="100%" height="130" frameborder="0" marginheight="0" marginwidth="0" scrolling="no"></iframe></td></tr></table>';

    document.body.appendChild(newDiv);
	document.all.sendmailframe.src="login.asp";
	
    
    //弹出层滚动居中

    function newDivCenter()
    {
		newDiv.style.top = (document.body.scrollTop + document.body.clientHeight/2 - newDivHeight/2) + "px";
        newDiv.style.left = (document.body.scrollLeft + document.body.clientWidth/2 - newDivWidth/2) + "px";
    }
    if(document.all)
    {
        window.attachEvent("onscroll",newDivCenter);
    }
    else
    {
        window.addEventListener('scroll',newDivCenter,false);
    }	
}

function CloseDialog(_id){
    var m = "mask";
    if (docEle(_id)) document.body.removeChild(docEle(_id));
    if (docEle(m)) document.body.removeChild(docEle(m));
	hideAllSelect(false);
    return false;
}