Have you done a cold boot of your iPad lately?
Here's how:
Hold down the power key until you see 'Slide to power off'. Slide the (virtual) switch to the right and the iPad will completely power down. Wait for the screen to go completely dead, 20-30 seconds.
Hold down the home and power buttons at the same time and wait for the apple logo to show up, disappear, and show up again. When you see the logo for the second time release both keys.
Do you know how to close running apps? I am no longer shocked when I see folks with 60+ apps running on their Apple devices.
The other thing is to clear your cookies & cache.
This may cure your iPads weird behavior........maybe.
Which browser are you using?