how to get the value from a callback function

Question

I am relatively new to javascript and I am facing some difficulty.I have two java script files as I have shown below. I am having trouble getting the value of the variable

Answer 1

Eventhough it will make your code a mess, you can append the variables to the window object. For example:

function a()
{
 window.testStr = "test";

}

function b()
{
 alert(window.testStr);
}

Or even create your own object, instead of using window, as such:

var MyRSSReader = {
 TitleOne : '',
 TitleTwo : '' 
} 

MyRSSReader.TitleOne = "My title";

Wikipedia has a nice article about global variables, and why they are bad.