Cross-browser drag and drop - CodeProject®

Intro to Article

I could not find a good Drag and Drop JavaScript example that would work in all browsers (including iPad). So I wrote one myself. I hope someone might find it useful. Please note that this example shows how to “capture” the element so that you don’t lose it if you move outside of the element or outside of the browser window.
Unfortunately, I could not find a good way how not to lose capture over an iFrame in Chrome and Safari. The best approach I found is to cover all iFrames with DIVs while the dragging is taking place. Any suggestions on how to do this better are welcome.
This article is for those that like nuts and bolts and are not using third party libraries like jQuery. There is nothing wrong with using third party libraries – I just like more flexibility. For example, you can use this example to resize elements.

Cross-browser drag and drop - CodeProject®