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  #1  
Old April 28th, 2003, 07:27 AM
Evil_homer Evil_homer is offline
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using JavaScript for form submit

Hi,

Im trying to create a form with two hyperlinks, which when clicked submit the page and pass different values to the page.

so far i have:

<form name="change_record" action="record_update.php" method="post" autocomplete="off">

<a name="edit" href="javascript:document.change_record.submit();">Edit</a>
<a name="delete" href="javascript:document.change_record.submit();">Delete</a>
</form>

As u can see, the posting to page is a php page. In that page i then want to be able to test which link was selected by using the post variables. eg

if(isset($HTTP_POST_VARS['delete'])) { //delete record }

However this doesn't work, as no post variable is recognised called delete. If i use a submit button instead however it works perfectly. eg

<input type="submit" name="delete" value="Delete"/>

Any ideas how i can get the hyperlinks to pass thier names as post variables, or a way i can detect which has been selected in php.

Thanks

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Old April 28th, 2003, 11:25 AM
asgeo1 asgeo1 is offline
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ok. Well in that case you could try the onClick event instead. That could call a function which creates a hidden element with the appropriate value, and then submits the form.

<form name="change_record" action="record_update.php" method="post" autocomplete="off">

<a name="edit" href="javascript:void(1);" onClick="submitForm('Edit');">Edit</a>

<a name="delete" href="javascript:void(1);" onClick="submitForm('Delete');">Delete</a>

function submitForm(action){
document.all.change_record.innerHTML = document.record.innerHTML + "<input type=hidden name=submit value='" + action +"'>";
document.change_record.submit();
}


Then you can just check so see which link was used to submit the form:

PHP Code:
if($_POST["submit"] == "Delete"){ 
//delete record 




hope that helps
-Adam

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Old April 28th, 2003, 11:57 PM
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stumpy stumpy is offline
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I use the same kinda method

Code:
<script language="Javascript">
  function procLink(action) {
    document.foo.doThis.value = action
    document.foo.doThis.submit()
}
</script>
<form name="foo">
<input type="hidden" name="doThis" value="">
your links here.. call the JS function and pass 
it a value, edit or delete
</form>

btw - i noticed you have a space in the word "javascript" in your links. That may break things.
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Old April 29th, 2003, 08:09 AM
Evil_homer Evil_homer is offline
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Thumbs up

Thanks both, your methods work perfectly. Problem solved!


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