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count number of child tags

Posted on 2006-11-20
2
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Last Modified: 2008-01-09
Hello experts:

Is there an easy way to count the number of child tags an html tag has?

For example, I want to know the number of columns for this row in a table (in this case, it is three, but I want to write a for loop that goes through each of the tds in a table where I don't know the column amount):

<tr id="some_row">
   <td>value 1</td>
   <td>value 2</td>
   <td align="center">value 3</td>
</tr>

Thanks in advance for your help
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Question by:freezegravity
2 Comments
 
LVL 30

Accepted Solution

by:
callrs earned 250 total points
ID: 17982605
<table>
<tr id="some_row">
   <td>value 1</td>
   <td>value 2</td>
   <td align="center">value 3</td>
</tr>
</table>
<script type="text/javascript">
var TR=document.getElementById("some_row")
var TD=TR.getElementsByTagName("td")
alert(TD.length)
</script>
0
 

Author Comment

by:freezegravity
ID: 17982789
Works great!

Thanks a bunch!
0

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