How to assign the value of a closure variable to a global variable.

Question

var x="";
// here is the closure
(function (index){
//click handler on array of elements to retrieve
//their index
... [i].onclick=function (){
/*What happens here? can we assign the index variable here to a global one like x and later do stuff with x */
return x
}
})(i);

Answer 1

basically I have 4 images on a main page. I want onclick to open the target link and retrieve the clicked image src and append it to a div on the target page.

Answer 2

I'm not sure to understand what you want to achieve, but you could probably attach it to the window like "window.x = value" to be sure to retrieve it later.