// JavaScript Document

var alto = screen.height;
var largo = screen.width;

function envio_ok(){
	
	var comprobar1 = document.getElementById("name").value;
	var comprobar2 = document.getElementById("email").value;
	var comprobar3 = document.getElementById("subject").value;
	var comprobar4 = document.getElementById("message").value;
	
	if (comprobar1 == "" || comprobar2 == "" || comprobar3 == "" || comprobar4 == ""){
		
		var total = "comprobacion.php?c1="+comprobar1+"&c2="+comprobar2+"&c3="+comprobar3+"&c4="+comprobar4;
		Abrir_ventana(total);
		/*setTimeout("document.location='"+total+"'",0001);*/		
		 
	}else{
		document.enviar.submit();
	}
}

function Abrir_ventana (pagina) { 
	var opciones="toolbar=no,location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=yes, width=310, height=210, top="+(alto-210)/2+", left="+(largo-310)/2+""; 
	window.open(pagina,"",opciones); 
}