CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

Question Part A ▉ (100 bountys, awarded) Main question was how to make this site, load faster. First we needed to read these waterfalls. Thanks all for your suggestions on the waterfall readout analysis. Evident from the various waterfall graphs shown here is the main bottleneck: the PHP-generated thumbnails. The protocol-less jquery loading from CDN advised by David got my bounty, albeit making my site only 3% faster overall, and while not answering the site's main bottleneck. Time for for clarification of my question, and, another bounty:

I have a mobile version of my site that I have an issue with. My main site is (let's say) domain.com and my mobile site is (let's say) m.dom.com

The app I am writing involves taking details from the user and using them to access their account on a website. I know how to take details from the user but I don't know how to use those details to log into the website. Does anyone know how I can input these details in the correct boxes? Thanks in advance