// JavaScript Document
function browserRedirect( VaLink )
{
  var ns4 = document.layers;
  var ns6 = document.getElementById && !document.all;
  var ie4 = document.all;
  
  if(ns4) URLStr = VaLink;
  else if(ns6) URLStr = VaLink;
  else if(ie4) URLStr = VaLink;
  else URLStr = VaLink;
  location = URLStr;
}
function presionaBoton(nombreBoton){
	var objName = 'btn_'+nombreBoton;
	document.getElementById(objName).src = "imagenes/btn_" + nombreBoton + "_off.gif";
	return true;
}
function Rnd(){
	return Math.floor(Math.random()*100000000+1);
}

function validatenum(field) {
	var valid = "0123456789-"
	var ok = "yes";
	var temp;
	for (var i=0; i<field.value.length; i++) {
		temp = "" + field.value.substring(i, i+1);
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {
		alert("El numero ingresado no es correcto");
		field.focus();
		field.select();
   }
}

function validateimporte(field) {

	var valid = "0123456789.-"
	var ok = "yes";
	var temp;
	
	for (var i=0; i<field.value.length; i++) {
		temp = "" + field.value.substring(i, i+1);
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {
		field.focus();
		field.select();
		return 0;
   	}
   	else {
   		return 1;
   	}
   
}

function fncheckMail(x){
	if (!x) return false;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(x)){
		return false
//		alert('Debe ingresar una dirección válida de correo');
//		email.value = "";
//		email.focus();
	}
	return true;
}

function fncheckUsername(x){
	if (!x) return false;
	var filter  = /^([a-zA-Z0-9])/;
	return (filter.test(x));
}