function getBrowserID() {

	if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent)){ //test for Firefox/x.x or Firefox x.x (ignoring remaining digits);
		var ffversion=new Number(RegExp.$1) // capture x.x portion and store as a number
		if (ffversion>=3)
			return('FF3');
			//document.write("You're using FF 3.x or above")
		else if (ffversion>=2)
			return('FF2');
			//document.write("You're using FF 2.x")
		else if (ffversion>=1)
			return('FF1');
			//document.write("You're using FF 1.x")
	}
	else if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ //test for MSIE x.x;
		var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number
		if (ieversion>=8)
			return('IE8');
			//document.write("You're using IE8 or above")
		else if (ieversion>=7)
			return('IE7');
			//document.write("You're using IE7.x")
		else if (ieversion>=6)
			return('IE6');
			//document.write("You're using IE6.x")
		else if (ieversion>=5)
			return('IE5');
			//document.write("You're using IE5.x")
	}
	else
		return('OTHER');
		//document.write("n/a")
}

function showObject(num) {
	browserName = getBrowserID();
	if (browserName == 'OTHER') {
//		alert(browserName+' detected.');
		ns4 = document.layers;
		ie4 = document.all;
		if (ns4) 
			document.num.visibility = "show"
		else if (ie4) 
			document.all[num].style.visibility = "visible";
	}
	else {
//		alert(browserName+' detected.');
		document.getElementById(num).style.display = "block";
	}
}

function hideObject(num) {
	browserName = getBrowserID();
	if (browserName == 'OTHER') {
//		alert(browserName+' detected.');
		ns4 = document.layers;
		ie4 = document.all;
		if (ns4) 
			document.num.visibility = "hide"
		else if (ie4) 
			document.all[num].style.visibility = "hidden";
	}
	else {
//		alert(browserName+' detected.');
		document.getElementById(num).style.display = "none";
	}
}