sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);



//  Assign ody class based on available browser window width

window.onload = setScreenClass; 
window.onresize = setScreenClass;

//  Following transition classes will be declared:
//
//	classname		  screenwidth
//	------------------------------------------
//	screen_lo		  		< 950px	
//	screen_med		  		950px - 1024px
//	screen_hi				> 1024px			

function setScreenClass(){
	var fmt = document.documentElement.clientWidth;
	var cls = 
		(fmt<=950)?'screen_lo':
		(fmt>950&&fmt<=1024)?'screen_med':
		'screen_hi';
//	document.getElementById('tagLine').innerHTML=fmt+'px -> '+cls;
	document.body.className=cls;
};