Hi

My extension uses omnibar keyword. When user enters a specific keyword and a command, i open a javascript popup in the current tab by using the following code from my background page..

Code:

chrome.tabs.executeScript(null, {file: "popup.js"});

Where popup.js file contains the code to create and display the popup.

But, the javascript popup needs to show some dynamic text. So, i need to pass that dynamic text from the background page to popup.js file. How do i do that?

Thanks.

Typically you use the messaging api to communicate between different parts of an extension.....
http://code.google.com/chrome/extensions/messaging.html

But this is one of those times where you dont need that.
In your case Id do something like this.....
background.js

Code:

  theCode='var dynamictext = "Bunyips are ugly";';
  chrome.tabs.executeScript(null, {code:theCode,allFrames:false}, function(){
  chrome.tabs.executeScript(null, {file:'content.js',allFrames:false}); 
  }  
  );

content.js

Code:

alert(dynamictext);

....saves a bit of effort