Hello all,

we have a checkbox list with ten options, but we want our users to be able to choose only up to three options.
Could anyone please provide us with the Javascript snippet for this?

Many thanks,

Nectarios

This is the function we have so far but when we calling from the client site as countChecked($(outCheckboxlist)) it returns a null on the first alert and undefined on the second. Any ideas?

function countChecked(CheckBoxList)
{
     var objChkBoxLst = document.getElementById(CheckBoxList)
      alert(objChkBoxLst);
         if(objChkBoxLst)
         {
            var objChkBoxes = objChkBoxLst.getElementsByTagName('input');
            var i; var numSum = 0;           
               for(i=0;i               {                   
                 if(objChkBoxes.checked)
                 {                   
                   numSum += 1;
                     
                 }
               }
        }
            
document.getElementById('SelNote').innerHTML = numSum;
alert(numSum);
return numSum;
}