if(document.images) {
		buttonmax=8;

		//load in both sets of rollovers: ins and outs.
		buttonover = new Array(buttonmax+1);
		buttonout = new Array(buttonmax+1);
		for(var n=1;n<=buttonmax;n++) {
			buttonover[n]=new Image(50,104);
			buttonout[n]=new Image(50,104);
		}
		for(var n=1;n<=buttonmax;n++) {
			buttonover[n].src="images/button"+n+"over.gif";
			buttonout[n].src="images/button"+n+".gif";
		}

		//load in the large howto image tiles
		text = new Array(buttonmax);
		for(var n=1;n<=buttonmax;n++) {
			text[n]=new Image(344,258);
		}
		for(var n=1;n<=buttonmax;n++) {
			text[n].src="images/text"+n+".jpg";
		}
	}
	function buttonOn(i) {
		if(document.images) {
			document.images["button"+i].src=buttonover[i].src;
			document.images["text"].src=text[i].src;
		}
	}
	function buttonOff(i) {
		if(document.images) {
			document.images["button"+i].src=buttonout[i].src;
			document.images["text"].src="images/text3.jpg";
		}
	}