This small modification allows you to highlight the form elements in newreply and newthread, the elements change color to show which section the cursor is in, or puts a color border round any selected boxes.

Instructions
Add the following code at the top of your header template.

In newreply Template Find:
Replace with:
And Save Template
In newthread Template Find:
Replace with:
And Save Template.
In the examples i chose blue to show the difference but in the header code change the color in ( var highlightcolor="blue") you can try out different colors like lightyellow,yellow,lightred,etc have a play with it and see what colors work to suit you..

This works in the default vbulletin templates, other styles may be different...
Tested in explorer 7 but not FF...
The wysiwyg element does not get highlighted but the standard editor does..

Javascript taken from dynamicdrive.com and information and demo can be found here