function getChkVal(CtrlValue,ChkState)
{
    var flgCondn = false;
    var StrCtrlNm1=""; 
    var Coln = document.getElementsByTagName("input");        
    
    for(i=0;i<Coln.length;i++)
    {
        if (Coln.item(i).type =="checkbox")
        {
            StrCtrlNm1 = Coln.item(i).getAttribute("ID");
            if (StrCtrlNm1.indexOf(document.getElementById(CtrlValue).id) != -1  )
                {
                    if ( Coln.item(i).checked == true && ChkState == 0)  // Check if atleast one is true
                        {flgCondn = true  ;break;}
                    else if  (ChkState == 0) // Check if all are false
                        {flgCondn = false;}
                    // select all
                    else if  (ChkState == 1)
                        {Coln.item(i).checked = true;}
                        
                    // deselect all
                    else if ( ChkState == 2)
                        {Coln.item(i).checked = false;}//end if checked
                }// end indexof
        }// end checkbox
    }// end for
    
    if  (ChkState == 0) {return flgCondn;}
}