function gotoTab(tabname){
    $('#main_tabs li a').removeClass('selected');
    $('a#'+tabname+'Tab').addClass('selected');
    
    $('div.tab_content > div').hide();                      
    $('div#tab_'+tabname+'_container').show();                  
}

function gotoTab2(tabname){
    $('#sub_tabs li').removeClass('selected');
    $('li#'+tabname+'sTab').addClass('selected');
    
    $('div.stab_content > div').hide();                      
    $('div#stab_'+tabname+'_container').show();                  
}