Javascript function and combined variables, help appreciated.

Well friends, I need some help, so here I am. I want to move the following code as a javascript function -

 
<script type="text/javascript">  
        <!--
        var inter_<?=$cid?> = document.getElementById('chocQnty_<?=$cid?>');
        if (inter_<?=$cid?> && inter_<?=$cid?>.value) {
            var cqnty_<?=$cid?> = inter_<?=$cid?>.value;
        } else {
            var cqnty_<?=$cid?> = 0;
        }                  
        chocArray[<?=$countNo?>] = cqnty_<?=$cid?> + "~" + <?=$cprix?>;
        ajaxArr[<?=$countNo?>] = <?=$cid?> + "~" + cqnty_<?=$cid?>;
        subChoc('chocQnty_<?=$cid?>','totale_<?=$cid?>',<?=$cprix?>,chocArray,<?=$countNo?>,"",<?=$cid?>,ajaxArr);
 //-->      
 </script>

Code (markup):

As you can see, I need mixed / combined variables here, like inter_<?=$cid?> (I have used php here, since the javascript is a part of the main page, till now).

However, I want to move that to an external file, and tried doing something like -

function onloadEvents(cid,countNo,cprix) {
   var inter_+cid = document.getElementById('chocQnty_'+cid);
}

Code (markup):

It's not working. Wondering how can I get an equivalent of inter_<?=$cid?> in this function, where the value of $cid will come as a function argument.

Any help will be appreciated. Thanks.
Merry christmass to all

 

Hi
try this code:

   <!--
//this is in external include file
function funcName(cid,cprix,countNo){
        var inter = document.getElementById('chocQnty_'+cid);
        if (inter && inter.value) {
            var cqnty = inter.value;
        } else {
            var cqnty = 0;
        }                  
        chocArray[countNo] = cqnty+ "~" + cprix;
        ajaxArr[countNo] = cid + "~" + cqnty;
        subChoc('chocQnty'+cid,'totale_'+cid,cprix,chocArray,countNo,"",cid,ajaxArr);
}

Code (markup):

this is on the page
replace the old code:

<!--
funcName('<?=$cid?>','<?=$cprix?>',<?=$countNo?>);
 //-->      

Code (markup):

Hope I didn't miss something
Thanks

 

locdev, thanks a lot for your reply. Yeah, that's perfect, everything is working perfectly now