{
	know0=new Image();
	know0.src="/images/nav-know-off.jpg";
	know1=new Image();
	know1.src="/images/nav-know-on.jpg"; 
	
	eat0=new Image();
	eat0.src="/images/nav-eat-off.jpg";
	eat1=new Image();
	eat1.src="/images/nav-eat-on.jpg";
	
	learn0=new Image();
	learn0.src="/images/nav-learn-off.jpg";
	learn1=new Image();
	learn1.src="/images/nav-learn-on.jpg";
	
	live0=new Image();
	live0.src="/images/nav-live-off.jpg";
	live1=new Image();
	live1.src="/images/nav-live-on.jpg";
	
	pro0=new Image();
	pro0.src="/images/nav-pro-off.jpg";
	pro1=new Image();
	pro1.src="/images/nav-pro-on.jpg";
	
	edu0=new Image();
	edu0.src="/images/nav-edu-off.jpg";
	edu1=new Image();
	edu1.src="/images/nav-edu-on.jpg";
	
	about0=new Image();
	about0.src="/images/nav-about-off.jpg";
	about1=new Image();
	about1.src="/images/nav-about-on.jpg";
}

// main nav functions

function navOn(imgName) {
	if (document.images) {
		document.images[imgName].src = eval(imgName + '1.src');
	}
}

function navOff(imgName) {
	if (document.images) {
		document.images[imgName].src = eval(imgName + '0.src');
	}
}

function getArgs() {
	var args = new Object();
	var query = location.search.substring(1);
	var pairs = query.split("&");
	for(var i = 0; i < pairs.length; i++) {
		var pos = pairs[i].indexOf('=');
		if (pos == -1) continue;
		var argname = pairs[i].substring(0,pos);
		var value = pairs[i].substring(pos+1);
		args[argname] = unescape(value);
	}
	return args;
}

var args = getArgs();