function openPopUpWindow(url){
		
			var scrWidth = window.screen.availWidth;
			var scrHeight = window.screen.availHeight;
			var winWidth = (scrWidth >= 800 ? 800 : scrWidth) - 200;
			var winHeight = (scrHeight >= 600 ? 600 : scrHeight) - 200;
			var win = window.open(url, '_blank', 'resizable=1,scrollbars=1,width='+winWidth+',height='+winHeight+',screenX='+(scrWidth - winWidth) / 2+',screenY='+(scrHeight - winHeight) / 2+',left='+(scrWidth - winWidth) / 2+',top='+(scrHeight - winHeight) / 2);
		}