Disable radio buttons / onChange event


I have two radio buttons called "radiobuttons". The one has as value "number1" and the other one has as value "number2".

How can I disable then using javascript by using an onChange event?

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<input type = "radio" name = "radio1" onclick = "javascript: this.disabled = true">
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">

<input type = "radio" name = "radio1" onchange= "javascript: this.disabled = true">NUMBER 1
<input type = "radio" name = "radio1" onchange = "javascript: this.disabled = true">NUMBER2
use onclick or onchange whichever will suit ur requirement..
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more generically:


where 1 in this case represents the second radio button.  (0 is the first, 2 is the third, etc)

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... meaning, if there is more than one radio with the same name, then use the index number as I described above.
TagorAuthor Commented:
Thanks guys!
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