HERE IS ZEE JAVA CODE

var tableID = ["1","2","3","4","5"]
		
		function accept()
		{
			var id = document.getElementById("table").value;
			for(var i = 1; i < tableID.length; i++)
			{
				if(id = index)
				{
					var element = document.getElementById('table');
					element.disabled = true;
				}
			}
		}


THIS IS THE TEXT INPUT FIELD THING CODE

<form id = tableNumber>
		<fieldset style="text-align:center">
			Table Number: <input type="text" size="3" id="table"  />
		</fieldset>
	</form>


AND THE BUTTON SHICH SHOULD DO IT 

	<input type="button" onclick="accept()"  value="Submit">