var agt   = navigator.userAgent.toLowerCase();
var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
function hideMine(elmnt) {
	if( !is_ie ) return;
	var a = elmnt.getElementsByTagName("div");
	var div = a[0];
	elmnt.style.zIndex = 1;
	div.style.display = "none";
}
function showMine(elmnt) {
	if( !is_ie ) return;
	var a = elmnt.getElementsByTagName("div");
	var div = a[0];
	elmnt.style.zIndex = 100;
	div.style.display = "block";
}
var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height, scroll, resize)
{
	if(popUpWin)
	{	
		if(!popUpWin.closed) popUpWin.close();
	}
	popUpWin = open(URLStr,'popUpWin','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars='+scroll+',resizable='+resize+',copyhistory=no,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}