jquery - access to javascript var from actionlink -

in page have following script:

<script language="javascript">     var needtoconfirm = true;      window.onbeforeunload = confirmexit;      function confirmexit() {         if (needtoconfirm) {             return "you have attempted leave page. " +                 "if have made changes fields without clicking save button, changes lost." +                 " wish proceed?";         }     } </script> 

i able set needtoconfirm value in button this:

<input type="submit" value="save" name="_submitbutton" onclick="needtoconfirm = false"/> 

i want know if there's similar way in actionlink one:

@html.actionlink("remove item", "removeitemedit", new                             {                                 @_cardid = model.mpacktoedit.mlistcardpack[i].mcard.mmastercard.mcardid,                                 needtoconfirm = false                             }) 

i've tried doesn't work.

the third parameter of actionlink route values. need put needtoconfirm in fourth parameter - htmlattributes. try this:

@html.actionlink(     "remove item",      "removeitemedit",      new { @_cardid = model.mpacktoedit.mlistcardpack[i].mcard.mmastercard.mcardid },     new { "onclick" = "needtoconfirm = false" })