// JavaScript Document
function runImage(id) {
	var table = document.getElementById(id);  
	var rows = table.getElementsByTagName("tr");  
	for(i = 0; i < rows.length; i++){     
		if(rows[i].style.display == "block"){
			rows[i].style.display = "none";
			if((i+1)==rows.length){
				rows[0].style.display = "block";
			}else{
				rows[i+1].style.display = "block";
			}
			break;
		}
			
	}    

	setTimeout("runImage('"+id+"')",3990);
}

function validateContact(form){
	if(form.nombres.value == ""){
		alert("You must fill in the name field !!!");
		form.nombres.focus();
		return false;
	}
	if(form.correo.value== ""){
		alert("You must fill in the email field !!!");
		form.correo.focus();
		return false;
	} else {
		correo = validateEmail(form.correo.value);
		if(correo==false){
			form.correo.focus();
			return correo;	
		}
	}
	if(form.telefono.value== ""){
		alert("You must fill in the phone field !!!");
		form.telefono.focus();
		return false;
	}
	if(form.mensaje.value== ""){
		alert("You must fill in the message field !!!");
		form.mensaje.focus();
		return false;
	}	
	return true;
}

function validateEmail(email){
	var m = unescape(email);
	var i = 1;
	var mLength = m.length;
	while ((i < mLength) && (m.charAt(i) != "@")){
		i++
	}
	if ((i >= mLength) || (m.charAt(i) != "@")){
		alert("Mail invalid");
		return false;
	} else {
		i += 2;
	}
	while ((i < mLength) && (m.charAt(i) != ".")){
		i++
	}
	if ((i >= mLength - 1) || (m.charAt(i) != ".")){
		alert("Mail invalid");
		return false;
	}	
}