window.onload = setScreenClass; 
window.onresize = setScreenClass;
//  Following transition classes will be declared:
//
//	classname		  screenwidth
//	------------------------------------------
//	pda_v			  240px
//	pda_h			  320px
//	ultralow		  320px -  640px
//	screen_lo		  640px -  800px
//	screen_med		  800px - 1024px
//	screen_hi		 1024px - 1280px
//	screen_wide				> 1280px
function setScreenClass(){
	var fmt = document.documentElement.clientWidth;
	var cls = (fmt<=240)?'pda_ver':(fmt>240&&fmt<=320)?'pda_hor':(fmt>320&&fmt<=640)?'screen_ultralow':(fmt>640&&fmt<=800)?'screen_low':(fmt>800&&fmt<=1024)?'screen_med':(fmt>1024&&fmt<=1280)?'screen_high':'screen_wide';
	document.getElementById('count').innerHTML=fmt+'px -> '+cls;
	document.body.className=cls;
};