Mechanism to avoid selection of other elements while holding slider
Here a fiddle describing the issue:
http://jsfiddle.net/T2tYH/
Both <p> paragraph texts can be selected. But when I hold the slider to slide it, the <p> elements do *not* get selected. How is this achieved?
I even can move *outside* the browser viewport area and the slider is still is sliding and no elements selected. How is this achieved as well?
Currently I am writing a software and want to use the same feature or mechanism.