11 September 2009
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var rowURL = window.location.href;
var screenWidth = window.screen.availWidth;
if (rowURL.indexOf("screen_width") == -1)
window.location.href = window.location.href + "?screen_width=" + screenWidth;
This script just needs to be pasted inside the <body> tag of the page. The script basically checks whether the query string contains the “screen_width” parameter. If it doesn’t, it appends the “screen_width” parameter to the query string and refreshes the page. Server-side, you just need to retreive the value of the “screen_width” Request parameter.