function validate()
{
	var argv = validate.arguments;

	x = document.forms[0].elements[argv[0]];
	if (x == undefined || x.value == '0' || x.value == '')
	{
    	alert ('Por favor ingrese el campo "' + argv[1] + '"');
		//x.focus();
	    return false;
	}

	return true;
}