function changeTab(tabBox,tab,totalTabs)
{
var box = $('#tab_box_' + tabBox);
var parent_box = box.closest('.tab_box');
var tabs = box.find('td');
tabs.removeClass('selected');
box.find('#tab_' + tabBox + '_' + tab).addClass('selected');
parent_box.find('.tab_content > div').hide();
parent_box.find('#tab_content_' + tabBox + '_' + tab).show();
return false;
}