$(function(){
					 
    $("ul.dropdown li")
    	.hover(
    		function(){
    	        $(this).addClass("hover");
    	        var id = $(this).attr("id");
    	        var t = id.match(/^([^_]*)_(.*)$/);
    	        var changeImage;
    	        if (t[1] == 'tab') {
    	        	changeImage = tabItemImageInfo[t[2]][condition[t[2]]]['tab_on'];
    	        }/* else {
    	        	var u = id.match(/^([^_]*)_([^_]*)_(.*)$/);
    	        	changeImage = tabItemImageInfo[u[2]][u[3]]['pdown_on'];
    	        }*/

    	        $(this).children("img").attr("src", changeImage);
				$('ul:first',this).css('visibility', 'visible');
    		},
    		function(){
    			$(this).removeClass("hover");

    	        var id = $(this).attr("id");
    	        var t = id.match(/^([^_]*)_(.*)$/);
    	        var changeImage;
    	        if (t[1] == 'tab') {
    	        	changeImage = tabItemImageInfo[t[2]][condition[t[2]]]['tab'];
    	        }/* else {
    	        	var u = id.match(/^([^_]*)_([^_]*)_(.*)$/);
    	        	changeImage = tabItemImageInfo[u[2]][u[3]]['pdown'];
    	        }*/
    	        $(this).children("img").attr("src", changeImage);

				$('ul:first',this).css('visibility', 'hidden');
    		}
    	);

});