How to get screen resolution of visitor in javascript and/or php?

Question

I would like to know the screen resolution of a visitor visiting my page so I can properly make a jquery thickbox cover about 75% of their screen.

Solutions to the q

Answer 1

If you are using jQuery, there is cross-browser solution to get the browser window size:

var browserWidth = $(window).width();
var browserHeight = $(window).height();