Selecting a radio button when a dropdown value changes
My setup is something like this:
radiobutton1 - selection1
radiobutton2 开发者_JAVA技巧- selection2 textinput1
I want radiobutton1 to be selected whenever selection1 is changed, and I want radiobutton2 to be selected whenever either selection2 or textinput1 is changed.
There has to be a simple javascript solution here... I just can't find it.
Here's my actual code ("$semopt" is a string holding the html code for the options on the first selection input):
<input type='radio' name='semester' value='existing'/>Existing semester:
<select name='sem_id'">$semopt
</select><br/>
<input type='radio' name='semester' value='new'/>New Semester:
<select name='sem_name'">
<option value='Fall'>Fall</option>
<option value='Spring'>Spring</option>
</select>
<input name='sem_year' value='$thisyear' size='5'"/><br/>
without resorting to "use jQuery" here's what you can do to your select tags.
<select id="selection1" onchange="document.getElementById('radiobutton1').checked = true;">
do the same for the other one.
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