function toggleLayer(whichLayer) {
	if (document.getElementById) {
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		style2.display=(style2.display=="block")?"none":"block";
	}
	else if (document.all) {
		// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	else if (document.layers) {
		// this is the way nn4 works
		var style2 = document.layers[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
}

function toggleLayerSB(whichLayer) {
	if (document.getElementById) {
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		style2.display=(style2.display=="block")?"none":"block";
		var style3 = document.getElementById(whichLayer + "_close").style;
		style3.display=(style3.display=="inline")?"none":"inline";
	}
}

function togRNload() {
	if (document.getElementById('release_notes')) {document.getElementById('release_notes').style.display='block';}
}

function togRN() {
		var style2 = document.getElementById('release_notes').style;
		style2.display="none";
	}
	
function tog_main(fileName) {
	document.getElementById('main_image').src = '/images/products/'+fileName+'-md.jpg';
	document.getElementById('big_image').src = '/images/products/'+fileName+'-lg.jpg';
}

function tog_big() {
	var theStyle = document.getElementById('big_image_div').style;
	theStyle.display=(theStyle.display=="block")?"none":"block";
}