function validateBlockedNumber()
{
	var err="";
	if (ValidatorTrim(document.frmblockednumber.clsblockednumber_number.value)=="")	
       err+="Mobile No. is required field.\n";	
   else if(isNaN(document.frmblockednumber.clsblockednumber_number.value))
   	   err+="Mobile No. is invalid.\n";	
   else if(document.frmblockednumber.clsblockednumber_number.length<10)	
	   err+="Mobile No. is invalid.\n";		 
	if (err!="")
	{
		alert(err);
		return;
	}
  else
	{
		document.frmblockednumber.clsblockednumber_hdn_action.value="1";	
		document.frmblockednumber.submit();
		return;
	}
}