function abrirV(url) {
	
		w=680;
		h=500;
		winName="protegue";
		scrollbars="yes";
	   LeftPosition=(screen.width)?(screen.width-w)/2:100;
	  TopPosition=(screen.height)?(screen.height-h)/2:100;
	  
	  settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scrollbars+',location=no,directories=no,status=0,menubar=no,toolbar=no,resizable=no';

window.open(url,winName,settings); 
	}