cross browser

Below Are my script functions for dropdowns associated with whether you answer yes or no to the questions. The problem is they only work in ie. I need them to work on all browsers, netscape and firefox. Is there something wrong in my script. I’m at a loss. All help welcomed…

<script type=”text/javascript”>
document.onload = function w00p() {document.getElementById(“hide1″).style.display=”list-item”;}
</script>
<script type=”text/javascript”>
document.onload = function w00t() {document.getElementById(“hide2″).style.display=”list-item”;}
</script>
<script type=”text/javascript”>
document.onload = function w00ts() {document.getElementById(“hide3″).style.display=”list-item”;}
</script>

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