function tab(group,num) {
   	divid = 'div'+group+'-'+num;
    document.getElementById(divid).className = 'boxes';
}
function tab2(group,num) {
   	divid = 'div'+group+'-'+num;
    document.getElementById(divid).className = 'boxes2';
}
function tabhid(group,num) {
   	divid = 'div'+group+'-'+num;
    document.getElementById(divid).className = 'dspnone';
}