function isempty (item,textalert) {
	var espacios = true;
 	var cont = 0;
 	while (espacios && (cont < item.length)) {
  		if (item.charAt(cont) != " ") {
   			espacios = false;
  		}
  		cont++;
 	}
 	if (item == "") {
  		alert(textalert);
		return false;
 	}
 	else if (item.length == 0) {
  		alert(textalert);
		return false;
	}
 	else if (espacios) {
  		alert(textalert);
		return false;
	}
 	else {
  		return true;
 	}
}
function isValidPassword (cadena1, cadena2) {
	if (cadena1 != cadena2) {
		alert("Las Contraseas no son iguales");
  		return false;
 	}
 	else {
 		//ANDA
  		return true;
 	}
}
function isValidEmail(email,textalert) {
	var fortest=email;
	JSRegExp =/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(JSRegExp.test(fortest)) {
		return true;
	}
	else {
		alert(textalert);
		return false;
	}
}
function ChekForm(){

	if (isempty(document.regform.tlogin.value,"Ingrese Login!!!") != true) {
			document.regform.tlogin.focus();
		return false;
	 }
	 else if (isempty(document.regform.password.value,"Ingrese contraseña") != true) {
			document.regform.password.focus();
		return false;
	 }
	 else if (isempty(document.regform.confirm_password.value,"Repite la contraseña") != true) {
			document.regform.confirm_password.focus();
		return false;
	 }
	 else if (isValidPassword(document.regform.password.value,document.regform.confirm_password.value) != true) {
	  document.regform.password.focus();
		return false;
	 }
	 else if (isempty(document.regform.name.value,"Ingrese Nombre") != true) {
			document.regform.name.focus();
		return false;
	 }
	 else if (isempty(document.regform.last_name.value,"Ingrese Apellido") != true) {
			document.regform.last_name.focus();
		return false;
	 }
	 else if (isempty(document.regform.address.value,"Ingrese la dirrección") != true) {
			document.regform.address.focus();
		return false;
	 }
	 else if (isempty(document.regform.barrio.value,"Seleccione el barrio") != true) {
			document.regform.barrio.focus();
		return false;
	 }
	 else if (isempty(document.regform.tel.value,"Ingrese el telefono") != true) {
			document.regform.tel.focus();
		return false;
	 }
	 else if (isempty(document.regform.txtEmail.value,"<?=_EmailError?>") != true) {
			document.regform.txtEmail.focus();
		return false;
	 }
	 else if (isValidEmail(document.regform.txtEmail.value,"<?=_validMail?>") != true) {
  	document.regform.txtEmail.focus();
	  return false;
   }
	else {
  return true;
 }
}
function Cheklogin(){
	if (isempty(document.formlogin.login.value,"Ingrese Login!!!") != true) {
			document.formlogin.login.focus();
		return false;
	 }
	 else if (isempty(document.formlogin.password.value,"Ingrese contraseña") != true) {
			document.formlogin.password.focus();
		return false;
	 }
	 else {
	  return true;
	 }
}
function ChekHelp(){
	if (isempty(document.helpform.name.value,"Ingrese Nombre!!!") != true) {
			document.helpform.name.focus();
		return false;
	 }
	 else if (isempty(document.helpform.txtEmail.value,"<?=_EmailErr1?>") != true) {
			document.helpform.txtEmail.focus();
		return false;
	 }
	 else if (isValidEmail(document.helpform.txtEmail.value,"<?=_EmailErr1?>") != true) {
	document.helpform.txtEmail.focus();
	  return false;
	}
	else if (isempty(document.helpform.comment.value,"Ingrese el comentario") != true) {
			document.helpform.comment.focus();
		return false;
	 }
	else {
	  return true;
	 }
}