Hi there

I'm trying to run the 'onchange' event not in the html code but from an external js file for checkboxes to activate 'presupuesto' function. I was trying pretty simple options without succes so far...

This would be the 'regular' in-html code:

Code:
<input type="checkbox" name="show" value="" id="show" onChange="presupuesto()"  />
<input type="checkbox" name="ilikeit" value="" id=ilikeit" onChange="presupuesto()"  />
<input type="checkbox" name="gallery" value="" id="gallery" onChange="presupuesto()"  />
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And this is how I was trying it to work:

Code:
HTML
----------------

<input type="checkbox" name="show" value="" id="show"  />
<input type="checkbox" name="ilikeit" value="" id=ilikeit"   />
<input type="checkbox" name="gallery" value="" id="gallery"  />


External JS
----------------

document.getElementById("show", "ilikeit", "gallery").onchange=presupuesto();
Any sugestions??

Thx a million in advance.