Why does this work as hover but not as click functionality

Why does this work as hover but not as click functionality

Page being used on: 

code works as hover but not as click. Currently code is set to hover.

jQuery(document).ready(function() {
jQuery(".tab_content_login").hide();  
jQuery("ul.tabs_login li:first").addClass("active_login").show();  
jQuery(".tab_content_login:first").show();
jQuery( "ul.tabs_login li" ).hover(function() {
 
    jQuery("ul.tabs_login li").removeClass("active_login"); // take the class off all li's
jQuery(this).addClass("active_login"); // put the class on the current li
var activeTab = jQuery(this).find("a").attr("href");
jQuery(".tab_content_login").hide();
if (jQuery.browser.msie) {jQuery(activeTab).show();}
else {jQuery(activeTab).show();}
return false;
});