function changeFontSize(element,step)
		{
			var el = document.getElementById(element);
			if(el.style.fontSize){
				var curFont = el.style.fontSize;
			}else{
				var curFont = 1.2;
			}
			curFont = ''+curFont;
			curFont = curFont.substring(0,3);
			curFont = parseFloat(curFont,10);
			if(step == 'increase'){
				el.style.fontSize = (curFont+.1) + 'em';
			}else{
				el.style.fontSize = (curFont-.1) + 'em';
			}
			return;
			
		}