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Things about document.getElementById


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I want to change something in a table when i click on it,so i create a onclick function,but i notice if i have a fucntion like this:

<html><head><script type="text/javascript">function handleRightClick(){document.getElementById("test").innerHTML="123123";}</script</head><body><table id="test" oncontextmenu="handleRightClick(this); return false;"><tr><td>A</td></tr><tr><td>B</td></tr><tr><td>C</td></tr></body></html>

when i click on it, it will change everything,how can i change all my elements sperate ?like when i click on A, only a will change. I want to know how to make it in one function,not create a new functionbecause if i have 50 elements then i may need to have 50 same functions to do it lol Many thanks

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Take a look at this code. It's jQuery but it works pretty well.

<!DOCTYPE html><html lang=en><head><meta charset="utf-8"><!-- saved from url=(0014)about:internet --><title>localhost - Viewing a Kennel</title><link rel="stylesheet" href="/css/main.css" media="screen"><script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script><script>$(function(){	$("td").on("contextmenu",function(){		$(this).text("123123");	});});  </script></head><body> <table id="test" >	<tr>		<td>A</td>	</tr> 	<tr>		<td>B</td>	</tr> 	<tr>		<td>C</td>	</tr></table> </body></html>

Hope this helps. Regards, Labtec.

Edited by Labtec
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The innerHTML refers to every single thing that's between the <table> and </table> tags. There are other ways to access elements, besides getElementById(). I use getElementsByTagName() a lot. For example, to get all the table cells inside the table:

var cells = document.getElementById("test").getElementsByTagName("td");for(var i = 0; i < cells.length; i++) {    cells[i].innerHTML = "123";}

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Thanks for help,but let's said this, i have my table which wrote in javascript

document.write('<table>');//Creates Tabledocument.write('<table>');//for loop that creates the row, increments from 0 to 9 each time it reiteratesfor (var row=0; row<9; row++) {    document.write('<tr>');    //a nested for loop that reiterates 9 times creating the <td>'s and then exits to the parent for loop.    for (var col=0; col<9; col++) {        document.write('<td id="r', row, 'c', col, '"oncontextmenu="handleRightClick(this); return false;">');        document.write('</td>');    }    document.write('</tr>');}document.write('</table>');

and now i want to put an image when user right click on itso i try this code to test it:

function handleRightClick(){                document.getElementById('r0c0').innerHTML = '<img src="minesweeper_tiles.png" width="28px" height="28px" alt="Automine" />';}

it works , but i want to let the user click on any of themand the cell he select will have an image appeari had plan to loop throught the whole tablebut i realize if i do so, when the user click onceeverything cell will appear an image, not only the selected cell. Many thanks

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