function changeCSS(obj) {
	obj.className='selected';
}

function restoreCSS(obj) {
	obj.className='';
}

function resizeText(multiplier) {
	if (document.body.style.fontSize == "") {
    	document.body.style.fontSize = "100%";
	}
  	document.body.style.fontSize = parseFloat(document.body.style.fontSize) + (multiplier * 10) + "%";
}

function resetText() {
	if(document.body.style.fontSize != "100%") {
		document.body.style.fontSize = "100%";
	}
}