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Thread: action variable
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Jan 11, 2002, 13:43 #1SitePoint Addict
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action variable
How do I set the ACTION variable of a form in javascript, i.e. I have some radios. If a user chooses radio one, the action is set to a script (script1.php), if he chooses radio two, action is set to another script (script2.php) and so on.
Some help, please?php? mysql? apache? That's it.
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Jan 11, 2002, 13:49 #2SitePoint Addict
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Untested, but I have an idea:
instead of writing your <form> tag with HTMl write it with javascript:
<script language="javascript"><!--
document.write("<form name='frm' method='post' action='" + document.frm.radio_name.value + "'>")
//-->
</script>
Please let me know if it had worked.
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Jan 11, 2002, 14:04 #3SitePoint Addict
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I am not sure the first example will work since you are writing a <form> tag before the frm is read and JS might get confused by the "radio_name.value" thing. So I have thought of another idea.
write your form in html as usual, but don't specify the action. Then, instead of <input type="submit"> have <input type="botton" value="submit" onClick="subm()">
then have
function subm() {
document.form_name.action = document.form_name.radio_name.value
document.form_name.submit()
}
HTH
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Jan 11, 2002, 15:34 #4SitePoint Addict
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I am not sure the first example will work since you are writing a <form> tag before the frm is read and JS might get confused by the "radio_name.value" thing. So I have thought of another idea.
write your form in html as usual, but don't specify the action. Then, instead of <input type="submit"> have <input type="botton" value="submit" onClick="subm()">
then have
function subm() {
document.form_name.action = document.form_name.radio_name.value
document.form_name.submit()
}
HTH
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Jan 11, 2002, 17:47 #5Typo Negative
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Agreed, you want to set the form.action property. I would do it differently though (and this is untested) by not assigning an action to the form in the form tag and using event handlers to set the action.
You would have to setup some kind of validation to check that one of the radio buttons in the group had been selected, but you'd have to do that anyway for the multiple choice action thing to work with any real usefulness.Code:<input type="radio" name="blah" value="etc1" onClick="document.formName.action='first_action_URL'"> <input type="radio" name="blah" value="etc2" onClick="document.formName.action='second_action_URL'">
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Jan 14, 2002, 05:30 #6SitePoint Addict
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I have used this function, but it didn't work. I'm a newbie to javascript, so I'm asking for help again.
Thanks.PHP Code:<script language="javascript">
<!--
function subm()
{
document.my_form.METHOD = "POST";
document.my_form.action = document.form_name.radios.value;
document.my_form.submit();
}
// end hide -->
</script>
...
<form name="my_form">
<input type="radio" name="radios" value="script1.php">script1<br><br>
<input type="radio" name="radios" value="script2.php">script2<br><br>
<input type="button" name="submit" value="submit" onClick="subm()">
</form>
php? mysql? apache? That's it.
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Jan 14, 2002, 09:50 #7SitePoint Addict
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rwar,
at the first glance I have spotted the following:
document.my_form.action*=*document.form_name.radios.value
should actually be
document.my_form.action*=*document.my_form.radios.value
since your form's name is "my_form"
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Jan 14, 2002, 10:29 #8SitePoint Addict
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Thanks, valeria_vi. But I'm not understanding the point you want I change the script.
Could you use the script I write and change it?php? mysql? apache? That's it.
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Jan 14, 2002, 10:31 #9SitePoint Addict
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The bottom bar (Internet Explorer) shows
JavaScript error: Type 'javascript' into location for details.php? mysql? apache? That's it.
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Jan 14, 2002, 11:14 #10SitePoint Addict
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I have an error in this line:
document.my_form.submit();
there should be no () after submit i.e. the line should look like this:
document.my_form.submit;
also, i wouls keep document.my_form.METHOD to be all lower-case.
my final code looked like this:
<HTML>
<HEAD>
<TITLE>Untitled</TITLE>
<script language="javascript"><!--
function subm() {
document.my_form.method = "post"
document.my_form.action = document.my_form.radios.value
document.my_form.submit
}
//-->
</script>
</HEAD>
<BODY>
<form name="my_form">
<input type="radio" name="radios" value="script1.php">script1<br><br>
<input type="radio" name="radios" value="script2.php">script2<br><br>
<input type="button" name="submit" value="submit" onClick="subm()">
</form>
</BODY>
</HTML>
and it gave me no errors
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