jquery - Accessing different page controls using JavaScript -

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How can I use different page controls using javascript ?

For example, I have two pages: Page1.htm and Page2.htm .
I write in my javascript code Page1.htm and I need to access a text box or any other control which is Page2.htm .

like it, 

  $ (function () {$ .get ('page2.html', function (html) {console.log ($ (html). Find ('textarea'));});});

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