/**
 * jQuery.rollover
 *
 * @version  1.0.2
 * @author   rew <rewish.org@gmail.com>
 * @link     http://rewish.org/javascript/jquery_rollover_plugin
 * @license  http://rewish.org/license/mit The MIT License
 *
 * Inspired by:
 * Telepath Labs (http://dev.telepath.co.jp/labs/article.php?id=15)
 *
 * Usage:
 * jQuery(document).ready(function($) {
 *   // <img>
 *   $('#nav a img').rollover();
 *
 *   // <input type="image">
 *   $('form input:image').rollover();
 *
 *   // set suffix
 *   $('#nav a img').rollover('_over');
 * });
 */
jQuery.fn.rollover = function(suffix) {
	suffix = suffix || '_o';
	return this.not('[src*="'+ suffix +'."]').each(function() {
		var img = jQuery(this);
		var judge=true;
		
		if(img.attr('id')!=""){			
			if(img.attr('id')==rolloverSelect){
				judge=false;
			}
		}
		
		
		var src = img.attr('src');
		var _o = [
			src.substr(0, src.lastIndexOf('.')),
			src.substring(src.lastIndexOf('.'))
		].join(suffix);
		jQuery('<img>').attr('src', _o);
		if(judge){
			img.hover(
				function() { img.attr('src', _o); },
				function() { img.attr('src', src);over=img; }

			);
		}else{
			img.attr('src', _o);
		}
		
	});
};

/*
window.onbeforeunload = function() {
	if(over!=null){
		var regOver = new RegExp( _over, "g" );
		var regSelect = new RegExp( _select, "g" );	
		var src = over.attr('src');
		var _o = src.replace(regSelect, '').replace(regOver, '');
		over.attr('src', _o);
	}
};
*/