var NS4 = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) < 5);
var NSX = (navigator.appName == "Netscape");
var IE4 = (document.all) ? true : false;
//
function ShowObject(pObj)
{
	eval("document.all." + pObj + ".style.display='block'");
}
//
function HideObject(pObj)
{
	eval("document.all." + pObj + ".style.display='none'");
}
//
function isEmailAddr(email){
  var result = false;
  var theStr = ""+email;
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex=theStr.indexOf('.',index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}
//
function validacion(formField,fieldLabel){
	var result = true;
	
	if (formField.value == "")
	{
		formField.focus();
	    alert('Por favor ingrese su' + fieldLabel + ' en el formulario.');
		result = false;
	}
	
	return result;
}
//
function valid_checkbox(formField,fieldLabel){
var result = true;
	if (formField.value == "0")	{
		formField.focus();
		alert('Por favor seleccione u' + fieldLabel);
		result = false;
	}
	return result;
}