JS Function to 'SELECT ALL' / 'CLEAR ALL' for CheckBoxList Control

JS FUNCTION:


function CheckBoxListSelect(cbControl, state)
    {  
       var chkBoxList = document.getElementById(cbControl);
        var chkBoxCount= chkBoxList.getElementsByTagName("input");
        for(var i=0;i<chkBoxCount.length;i++)
        {
            chkBoxCount[i].checked = state;
        }
        return false;
    }