function validateFields(fields)
{
	for(field_name in fields ) 
	{
		var field = jQuery('#'+field_name);
		if(field.val().length == 0)
		{
			alert(fields[field_name]);
			field[0].focus();
			return false;
		}
	}
	
	return true;
}

function validateEmail(email)
{
	var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(email.match(emailRegEx))
	{
		return true;
	}
	
	return false;
}