// JavaScript Document



function is_number($char,$mozChar)
{


		if($mozChar != null)
		  { // Look for a Mozilla-compatible browser
			 if(($mozChar >= 48 && $mozChar <= 57) || $mozChar == 0 || $char ==8 || $mozChar == 13)
					  $RetVal = true;
			 else
			 {
			 $RetVal = false;
			 alert('Please enter a numeric value.');
			 }
		 }
	  else 
		 { // Must be an IE-compatible Browser
		 if(($char >= 48 && $char <= 57) || $char == 13) 
		 	$RetVal = true;
		 else
		 	 {
			 $RetVal = false;
			 alert('Please enter a numeric value.'); }
		 	}
			 return $RetVal;
		  
		 
		 
}

/*function is_number()
{

		if ((event.keyCode >=48 && event.keyCode <= 57) || event.keyCode == 8 )
				event.keyCode=event.keyCode;
		else
				event.keyCode=0;	
	
}*/