function popWindow(wWidth, wHeight, url, title) {

	sWidth	= screen.availWidth;
	sHeight	= screen.availHeight;	

	
	posx = Math.round((sWidth - wWidth) / 2) - 10;		

	posy = Math.round((sHeight - wHeight) / 2);		

	
	var _loc = url;
	var _name= title;
	var loginWindow = window.open(_loc,_name,"toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=no,width="+wWidth+",height="+wHeight+",left = "+posx+",top = "+posy+"");

	

}