jQuery.fn.hint = function(){
	if ($(this).length > 0){
		var $this = $(this);
		var iniVal = $this.attr('data-placeholder');
		
		if ($this.val() == ''){
			$this.val( iniVal );
		}
		
		$this.bind('focus', function(){
			if ($this.val() == iniVal){
				$this.val('');
			}
		});
		
		$this.bind('blur', function(){
			if ($this.val() == ''){
				$this.val( iniVal );
			}
		});
	}
}