function chkBT(aformid,abuttonid,txtid,ano)
{
if(document.all[txtid].value.length==ano)
{
if (document.all[abuttonid].value == "Wait For result!")

{

alert ("Please wait! result query is in progress...");

return false;

}

document.all[abuttonid].value ="Wait For result!";
alert('Please note :\r\r\"Get Result\" queries is \rvery Network resource intensive queries. You are therefore \rrequested to please wait for sometime and not to re-submit \rthe same.\r\r\tThanks for your co-operation.') 

document.all[aformid].submit();

return true;

}
else
{
alert("Entered Roll No. length is short");
}
}