function abre(trabajo)

{
	
var dir = "contacto.php?asu=" + trabajo;
	var myWidth = 700;
	var myHeight = 500;
	var myLeft = (screen.width-myWidth)/2;
	var myTop = (screen.height-myHeight)/2;
	//features+=',left='+myLeft+',top='+myTop;
	
window.open(dir,"detalle","toolbar=no,location=no, status=no,menubar=no,scrollbars=no,Height=400,Width=500" +',left='+myLeft+',top='+myTop);
//window.open(dir,"detalle","toolbar=no,location=no, status=no,menubar=no,scrollbars=no"); 

}