It is a common way to avoid fragments of the previous site to be visible in the site.
The browser will clean its WMLScript variables.
The browser will clean its cache.
He avoids a potential security risk: Other sites could read the values of variables if newcontext were set to "false".
The browser will clean its old link values.
Prior to opening the card the following WMLScript has been run: WMLBrowser.setVar("greeting", "hello"); After opening the card this value can still be retrieved using var greeting = WMLBrowser.getVar("greeting");
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