// Start numerals only script
	function disableKey(e) 
		{var key; 
			if(window.event) 
	          key = window.event.keyCode;     //IE 
	     	else 
	          key = e.which;     //firefox 
	  		if((key  < 48 || key > 57)) 
	          return false; 
	     	else 
	          return true; 
		} 
// End numerals only script