emu in blogjava

< HTML >
< HEAD >
?? < TITLE > ???emu's???test???of???simple???tree </ TITLE >
?? < SCRIPT??? LANGUAGE ="JavaScript" >
?? <!--
???? function ???checkSelect(){
???????? var ???elm??? = ???event.srcElement.parentNode;
????????checkChildrenRecurve(elm);
????????checkRootRecurve(document.getElementById( " root " ));
????}
???? function ???checkChildrenRecurve(elm){
???????? var ???li??? = ???elm.parentNode;
???????? var ???ul??? = ???li.lastChild;
???????? if ???(ul.tagName??? != ??? " UL " )??? return ;
???????? var ???lis??? = ???ul.children;
???????? for ???( var ???i = 0 ;i < lis.length;i ++ ){
????????????lis[i].firstChild.firstChild.checked = elm.firstChild.checked;
????????????checkChildrenRecurve(lis[i].firstChild)
????????}
????}
???? function ???checkRootRecurve(ul){
???????? if ???(ul.tagName??? != ??? " UL " )???{
????????????ul.parentNode.firstChild.firstChild.allChecked??? = ???ul.parentNode.firstChild.firstChild.checked;
????????????ul.parentNode.firstChild.firstChild.allUnChecked??? = ??? ! ul.parentNode.firstChild.firstChild.checked;
???????????? return ;
????????}
???????? var ???lis??? = ???ul.children;
???????? var ???allChecked??? = ??? true ;
???????? var ???allUnChecked??? = ??? true ;
???????? for ???( var ???i = 0 ;i < lis.length;i ++ ){
????????????checkRootRecurve(lis[i].lastChild);
????????????allChecked??? = ???allChecked??? && ???lis[i].firstChild.firstChild.checked??? && ???lis[i].firstChild.firstChild.allChecked;
????????????allUnChecked??? = ???allUnChecked??? && ??? ! lis[i].firstChild.firstChild.checked??? && ???lis[i].firstChild.firstChild.allUnChecked;
????????}
????????ul.parentNode.firstChild.firstChild.allChecked = allChecked;
????????ul.parentNode.firstChild.firstChild.allUnChecked = allUnChecked;
???????? if ???(allChecked??? || ???allUnChecked){
????????????ul.parentNode.firstChild.firstChild.checked = allChecked;
????????????ul.parentNode.firstChild.firstChild.indeterminate = false ;
????????????ul.parentNode.firstChild.childStatus = false ;
????????} else {
????????????ul.parentNode.firstChild.firstChild.indeterminate = true ;
????????????ul.parentNode.firstChild.childStatus = true ;
????????????ul.parentNode.firstChild.firstChild.checked = true ;
????????}
????}

???? function ???init(){
???????? var ???elms??? = ???document.getElementsByTagName( " INPUT " );
???????? for ???( var ???i = 0 ;i < elms.length;i ++ )
????????????elms[i].onclick = checkSelect;
????}

???? // -->
???? </ SCRIPT >
</ HEAD >

< BODY??? onload ="init()" >
???? < div >
???????? < span >< input??? type =checkbox ></ span >
???????? < UL??? id =root >
???????????? < LI >< span >< input??? type =checkbox ></ span >
???????????? < UL >
???????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? < UL >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? </ UL >
???????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? < UL >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? </ UL >
???????????? </ UL >
???????????? < LI >< span >< input??? type =checkbox ></ span >
???????????? < UL >
???????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? < UL >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? </ UL >
???????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? < UL >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????????? < LI >< span >< input??? type =checkbox ></ span >
???????????????? </ UL >
???????????? </ UL >
???????? </ UL >
???? </ div >
</ BODY >
</ HTML >