How do I check and inform user had javascript enabled in browser
35455
How to detect if JavaScript is disabled?
147958
What is a RELIABLE way to detect a client's browser and its version number?
78449
Popup detection before user logs in
128323
How to detect a mobile browser using PHP in content?
40503
How can I check if automatic updates are enabled?
1910
Javascript to check whether a checkbox is being checked or unchecked
95243
redirect to another page if javascript is disabled
135554
How can I disable javascript popups/alerts in Chrome?
113905
How can I check whether a variable is defined in JavaScript?
118355
How to check if an embedded SVG document is loaded in an html page?
133241
Detect browser character support in javascript?
78360
JavaScript for detecting browser language preference
114882
Detect Browser Language in PHP
154457
Javascript - How to detect if document has loaded (IE 7/Firefox 3)
104137
Within a web browser, is it possible for JavaScript to obtain information about the HTTPS Certificate being used for the current page?
133318
Determine Browser's Version
31652
Is there a JavaScript alert that doesn't pause the script?