Any way to auto zoom browser based upon user's browser window?

[phreak9i6]

Is there any way to (across browsers) cause my website to auto zoom based on the user's browser window. I have a web app that is a fixed aspect ratio. It needs to be this way as the central function (video) is intended to stay on screen at all times (I am using internal scroll bars along side). I've currently developed this in one size and first thought to translate all pixel data to percentages, with even the containing div recalculating based upon the browser window (to either fit 100% height or 100% width).However, is a way for me to access the browsers zooming capability and zoom the exact distance necessary to fit the browser window (in either height or width, depending on aspect ratio of browser window)? I'd think two steps would be necessary.[*]Being able to actually access the zoom functionality without the user.[*]Being able to calculate the zoom necessary (seems easy enough, as my design is a fixed width so any browser window size could be calculated and compared to my design and necessary zoom % calculated) and push that to the user's browser (for only my site!)This would save me A LOT of time and headache and ultimately be far more efficient as well. But is it possible? Any and all help appreciated. Thanks!