Use server-side application variables to drive client-side scripts

You can use serverside variables to drive client-side javascripts. Server-side variables get processed and the results output by the time the page is rendered, so the value of the variable can be used in client-side functions.

In an ASP application I’m working with, I wanted a different tooltip to show up on each tab, depending on what the tab title was. There is a server-side variable called “tabs[i].title”. So I created a little client-side function to test the value of the title on each tab.

 
<script>
var tabName ;

function whichTab(tabTitle){
   if (tabTitle == 'Summary'){
   tabName = Summary;
}
else if (tabTitle == 'Plan Details'){
   tabName = PlanDetails;
}
else if (tabTitle == 'Certifications'){
   tabName = Certifications;
}
else if (tabTitle == 'Transcript'){
  tabName = Transcript;
}
}
</script>

The html for the selected tab is:

<td>
  <strong onMouseOver="whichTab('${quoteHTML(tabs[i].title)}');this.T_STICKY=true;
this.T_WIDTH=400; this.T_TEMP=5500;return escape(tabName);">${quoteHTML(tabs
[i].title)}</strong></td>

and for the unselected tab:

<td>    <a href="${href}" onMouseOver="whichTab('${quoteHTML(tabs[i].title)}');this.T_STICKY=true; this.T_WIDTH=300; this.T_TEMP=5500;return escape(tabName);">${quoteHTML(tabs[i].title)}</a> </td> 

the function “whichTab()” uses the result of the serverside variable “tabs[i].title” to trigger a
tooltip generating script. “T_Sticky=true” turns on the tooltip for that link.

The results are here: