// Archivo JScript

function validar_2() {
	var nom = document.envio.nombres.value;
	var ema = document.envio.email.value;
	var asu = document.envio.asunto.value;
	var asu = document.envio.mensaje.value;
	var exp_mail=/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
	if ((!nom)||(nom=="")){
		alert("Ingrese sus nombres correctmente");
		document.envio.nombres.focus();
		return false;
		}
	if ((!exp_mail.test(document.envio.email.value)) || (!ema)||(ema=="")){
    	alert("La dirección de correo esta mal ingresada");
		document.envio.focus();
		return false;
		}

}







/***********************************************
* Gradual Highlight image script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/
var baseopacity=50
var browserdetect=""
function slowhigh(which2){
imgobj=which2
browserdetect=which2.filters? "ie" : typeof which2.style.MozOpacity=="string"? "mozilla" : ""
instantset(baseopacity)
highlighting=setInterval("gradualfade(imgobj)",50)
}

function slowlow(which2){
cleartimer()
instantset(baseopacity)
}

function instantset(degree){
if (browserdetect=="mozilla")
imgobj.style.MozOpacity=degree/150
else if (browserdetect=="ie")
imgobj.filters.alpha.opacity=degree
}

function cleartimer(){
if (window.highlighting) clearInterval(highlighting)
}

function gradualfade(cur2){
if (browserdetect=="mozilla" && cur2.style.MozOpacity<1)
cur2.style.MozOpacity=Math.min(parseFloat(cur2.style.MozOpacity)+0.1, 0.3)
else if (browserdetect=="ie" && cur2.filters.alpha.opacity<200)
cur2.filters.alpha.opacity+=10
else if (window.highlighting)
clearInterval(highlighting)
}