<script language="JavaScript">
<!--
function cek(){
counter=0;
for(i=1;i<10;i++){
// i=1;
if(document.getElementById('a'+i).checked==true){
//alert('aaddd');
counter++;
}
}
if(counter==2){
//alert('adadeh');
for(i=1;i<=10;i++){
if(document.getElementById('a'+i).checked==true){
continue;
}else{
document.getElementById('a'+i).disabled=true;
}
}
}/*
}else{
for(i=1;i<=9;i++){
document.getElementById('a'+i).disabled=false;
}
}*/
}
//-->
</script><pre>
<form NAME="formnya" action="script1.html" method="post">
1.<input type="checkbox" id="a1" name="pilihan[]" value="satu" onclick="cek()">satu
2.<input type="checkbox" id="a2" name="pilihan[]" value="dua" onclick="cek()">dua
3.<input type="checkbox" id="a3" name="pilihan[]" value="tiga" onclick="cek()">tiga
4.<input type="checkbox" id="a4" name="pilihan[]" value="empat" onclick="NgebatesinCheck()">empat
5.<input type="checkbox" id="a5" name="pilihan[]" value="lima" onclick="NgebatesinCheck()">lima
6.<input type="checkbox" id="a6" name="pilihan[]" value="enam" onclick="NgebatesinCheck()">enam
7.<input type="checkbox" id="a7" name="pilihan[]" value="tujuh" onclick="NgebatesinCheck()">tujuh
8.<input type="checkbox" id="a8" name="pilihan[]" value="delapan" onclick="NgebatesinCheck()">delapan
9.<input type="checkbox" id="a9" name="pilihan[]" value="sembilan" onclick="NgebatesinCheck()">sembilan
10.<input type="checkbox" id="10" name="pilihan[]" value="sepuluh" onclick="NgebatesinCheck()">sepuluh
<input type="submit" name="btkirim" value="KIRIM" disabled>
</form>this is script for allow user choose max 2 choice and disable others checkbox, my problem is if we check 2 checkbox is working but if we un check one of the checkbox which had checked the other checkbox is enable again..
