I'm noob with JavaScript and Greasemonkey and I'd like to write a simple script.

I know that Greasemonkey wraps your code with an anonymous function so your variables won't exist after leaving the current page. However, I need a global variable. I tried to use the unsafeWindow and window objects something like this:

if (window.myVar == undefined) {
   window.myVar = "myVar";
}

If I refresh the page the condition's value is always true.

Is there a way to use global variables with Greasemonkey?

javascript greasemonkey userscripts
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