JSRequest

In SharePoint when you are working with client side, at any point of time, you may need to get query strings.

So using JSRequest you can get that....
You can do all below things using JSRequest
1. Reading querystring values from the URL
2. Getting the file name of the page
3. Getting the path name of the file that is getting browsed.

How to write code...

	<script src="//code.jquery.com/jquery-1.10.2.js"></script>
	<script>
	JSRequest.EnsureSetup();
	//Getting a querystring value called searchResults
	var searchResults = JSRequest.QueryString["searchResults"]
	//Get the current page name. i.e - "default.aspx"
	var pageName = JSRequest.FileName;
	//Get the current path name. i.e - "/sitecollectionurl/libraryname/default.aspx"
	itemId = JSRequest.PathName
	</script>

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