function itemreturned(idbc)
{ 
if(idbc=='' || !idbc || idbc==null)
return false;
     if (document.getElementById) 
     {
    tbl = document.getElementById(idbc);
    //alert('re='+idbc)
     } 
     else if (document.all) 
     {
    tbl = document.all[idbc];
     } 
     else if (document.layers)
     {
    tbl = document.layers[idbc];
     }
     return tbl;
       
}