function openPopUp(URL, name, width, height) 
	{
		var intT, intL, attribute;		
		
		intT = (window.screen.height - height)/2;
		intL = (window.screen.width - width)/2;
		if(intT < 0)
			intT = 0;
		if(intL < 0)
			intL = 0;

		attribute = "toolbar=no,location=no,menubar=no,resizable=no,status=no,scrollbars=no,width="+String(width)+",height="+String(height)+",top="+String(intT)+",left="+String(intL);
		window.open(URL, name, attribute);
	}