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dhtmlxCombo - Form using GET instead of POST

Hi,

Here is my form with dhtmlxCombo:

<form method='GET' action='page2.php'>
<select id="cid" name="cname">
LOOP DATA
<option value='LOOP.ID'>LOOP.CNAME</option>
END LOOP
</select>
<script>
var a = dhtmlXComboFromSelect("cid");
a.enableFilteringMode(true);
</script>
<input type=submit>
</form>

Page doesn't pass value for the combo filed to next page. I assume this is because of using GET instead of POST?
Any solutions?

Thanks

Thanks for a quick reply. I understand what you are saying and I know one must use $_GET for such scenarios.
But with my form the query string goes complete blank i.e mysite.com/page2.php?     (<- nothing gets passed as query string)
At the moment I am forced to do the following:
<form method='GET' action='page2.php'>
<input type="hidden" name = "cid">
<select id="cid1" name="cname">
LOOP DATA
<option value='LOOP.ID'>LOOP.CNAME</option>
END LOOP
</select>
<script>
var a = dhtmlXComboFromSelect("cid1");
a.enableFilteringMode(true);
a.attachEvent("onChange",function(){
      document.forms['form1'].elements['cid'].value = a.getSelectedValue();
})
</script>
<input type=submit>
</form>
Basically using the onChange event to assign the value to the hidden form field. and this works!. produces:
mysite.com/page2.php?cid=19