function select_deselectAll (chkVal, idVal)
{ 
    var frm = document.forms[0];
    for (i=0; i<frm.length; i++) 
    {
        if (idVal.indexOf ('CheckAll') != -1)
        {
            if(chkVal == true)//CheckAll CheckBoxes
            {
                frm.elements[i].checked = true;
            } 
            else //UnCheck All CheckBoxes
            {
                frm.elements[i].checked = false;
            }
        }
    }
}
function CheckChanged()
{  
	var chklen=document.getElementById('countof').value;
	var z;	
	z=0;
	for (k=0;k<chklen;k++)
	{
			chknow=document.getElementById('deleteid['+k+']');
			if (chknow.checked==true)
			{ 			
				z=z+1;
			}
	}
	if(z < chklen)
	{		
		document.getElementById('CheckAll').checked=false;
	}
	else 
	{		
		document.getElementById('CheckAll').checked=true;
	}   
} 
function DG_Check_Sel()
{    
    var flag=0;		
    var frm = document.forms[0];    
    for (i=0; i<frm.length; i++) 
    {
       if(frm.elements[i].checked == true)
       {
            flag=1;
       }
    }     
    if(flag!=1)
	{			
		alert("Please select atleast one to delete");
		return false;	
	}	
	else 
	{
		if(confirm("Are you sure to delete the selected records?"))
		{
			return true;
		}

		else
		 {
			return false;
		 }
	}
}