function hideDivs(exempt) {
	if (!document.getElementById) return null;
	if (!exempt) exempt = "";
	var divs = new Array("abstract", "introduction", "thetransponder", "thebasestation", "thegui", "datacoding",
						 "conclusions", "cost", "workdistribution", "references");
	for(var i=0; i < divs.length; i++) {
		var id = divs[i];
		var div = document.getElementById(id);
		if (id != exempt) {
			div.className = "hidden";
		}
	}
}

function show(what) {
	if (!document.getElementById) return null;
	showWhat = document.getElementById(what);
	showWhat.className = "";
	hideDivs(what);
}

window.onload = function() {
	hideDivs("abstract");
}

/*Code courtesy of Sumul Shah, http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2004/sms95/keypaw/index.html */