var slider;
	function sl(){
		slider = YAHOO.widget.Slider.getHorizSlider("sliderBG", "sliderThumb", 0, 100, 8);
		slider.onChange = function(firstOfst, secondOfst){
			var elm_contents_left = document.getElementById("main");
			elm_contents_left.style.fontSize = (80 +  slider.getValue())+"%";
		}
	}

	function sl2(){
		slider = YAHOO.widget.Slider.getHorizSlider("sliderBG", "sliderThumb", 0, 100, 8);
		slider.onChange = function(firstOfst, secondOfst){
			var elm_contents_left = document.getElementById("mainSec");
			elm_contents_left.style.fontSize = (80 +  slider.getValue())+"%";
		}
	}