Disabling Text field with Javascript when value in drop down box is from mysql
- by SteveJ313
Hi
I have a simple script in HTML, using a dropdown menu. When the value 1 is selected, the user can write in the text field, if value 2 is selected, it disables the text field.
However, i changed the values of the dropdown menu, so that one value was from a mysql table(using PHP) and the other remained 'option value='1''. Yet now neither text field is disabled. Below is the code.
`<script type="text/javascript">
function findselected() {
if (document.form.selmenu.value == <?php echo $id; ?>) {
document.form.txtField.disabled=true;
// return false; // not sure this line is needed
} else {
document.form.txtField.disabled=false;
// return false; // not sure this line is needed
}
}
`
And the PHP section
if(mysql_num_rows($SQL) == 1)
{
echo "<select name='selmenu' onChange='findselected()'>";
echo "<label>TCA_Subject</label>";
while ($row=mysql_fetch_array($SQL)) {
echo "<option value='$id'>$thing</option>";
echo "<option value='2'>Choice 2</option>";
}
}
echo "<option value=$userid>'Choice 1'</option>";
?> <option value='2'>Choice 2</option>";
</select>
I have tried taking the second option value out of the loop, putting it into html, editing the variable in the javascript function. There is not a fault with the PHP as it is retrieving the right results and displaying it, yet the text field doesnt become disabled.
Does anyone know of a possible solution?
Thanks
