function openWin(wFile,wWidth,wHeight,wScrolling)
		{
			myWin=window.open(wFile,'ctxWin','width='+wWidth+'px,height='+wHeight+'px,resizable,scrollbars='+wScrolling);
			myWin.moveTo((screen.width/2)-(wWidth/2),(screen.height/2)-(wHeight/2));
			myWin.focus();
		}