function centrar() {
	
	var w1 = 285;
	var w2 = 201;
	//var w3 = document.getElementById('abs3').style.width;
	
	var centro = Math.floor(screen.availWidth / 2);
	
	document.getElementById('abs1').style.left = (centro - Math.floor(w2 / 2) - w1) + "px";
	document.getElementById('abs2').style.left = (centro - Math.floor(w2 / 2)) + "px";
	document.getElementById('abs3').style.left = (centro + Math.floor(w2 / 2) + 1) + "px";
	
	document.body.style.display = "inline";
}


function resaltar(objeto) {
	
	objeto.style.backgroundImage = "url(images/menu/resalte.gif)";

}


function restaurar(objeto) {
	
	objeto.style.backgroundImage = "none";
	
}


function expandir(objeto) {
	
	document.getElementById(objeto).style.display = (document.getElementById(objeto).style.display == "inline") ? "none" : "inline";
		
}


function checkform() {
	
	var formOK = true;
	
	if ( (document.getElementById("nombre").value == "") ||
			 (document.getElementById("direccion").value == "") ||
			 (document.getElementById("telefono").value == "") ||
			 (document.getElementById("email").value == "") )	formOK = false;
	
	if (formOK) {
		document.getElementById("form1").submit();
	} else {
		alert("Debe Completar los campos requeridos!");
	}
	
}