问if()的jQuery问题

EN

$(document).ready(function(){

if  ($(".forumrow table").find('a').filter(':contains(Next)')) {
$('.blockhead a').filter('a:last[href^="http://site.com/showgallery.php?cat="]').html('<a class="loadnextone" href="#">Load next</a>');
$('a.loadnextone').live("click",function(event) {
event.preventDefault();
var next1 = $(".forumrow table").find('a').filter(':contains(Next)').attr('href');
var next1cat1split =  $('.blockhead a').filter('a:last[href^="http://site.com/showgallery.php?cat="]').attr('href').split(/=/)[1];
$(".nextoz").load(next1+" ol.floatcontainer");
});
}

if ($(".forumrow table").find('a').filter(':contains(Prev)')) {
$('.blockhead a').filter('a:last[href^="http://site.com/showgallery.php?cat="]').html('<a class="loadprevone" href="#">Load prev</a>');
$('a.loadprevone').live("click",function(event) {
event.preventDefault();
var prev1 = $(".forumrow table").find('a').filter(':contains(prev)').attr('href');
var prev1cat1split =  $('.blockhead a').filter('a:last[href^="http://site.com/showgallery.php?cat="]').attr('href').split(/=/)[1];
$(".prevozz").load(prev1+" ol.floatcontainer");
});
}

});