function checkAll(chk_SelectAll,idchk)
{
    var frm = document.forms[0];
    var chkState = chk_SelectAll.checked;
    for(i = 0 ; i < frm.length; i++)
    {
        var el = frm.elements[i];
        if(el.type == "checkbox" && el.name.indexOf(idchk) != -1 )
        {
            el.checked = chkState;
            
        }
    }    
    
} 
function confirm_delete(str)
{
  if (confirm(str)==true)
    return true;
  else
    return false;
}
function clickButton(e, buttonid){

      var evt = e ? e : window.event;

      var bt = document.getElementById(buttonid);

      if (bt){

          if (evt.keyCode == 13){

                bt.click();

                return false;

          }

      }
}