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estrarre una variabile dal querystring

/ Published in: JavaScript
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  1. <script type="text/javascript"><![CDATA[
  2. function gup( name )
  3. {
  4.   name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  5.   var regexS = "[\\?&]"+name+"=([^&#]*)";
  6.   var regex = new RegExp( regexS );
  7.   var results = regex.exec( window.location.href );
  8.   if( results == null )
  9.     return "";
  10.   else
  11.     return results[1];
  12. }	]]>
  13. </script>
  14.  
  15.  
  16. <script type="text/javascript">
  17.         var cat_corrente = gup("id");
  18. 		document.write(cat_corrente);
  19. 		</script>

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