{
	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');
	}
}


{
	carbohydrates0=new Image();
	carbohydrates0.src="../images/carbohydrates-off.gif";
	carbohydrates1=new Image();
	carbohydrates1.src="../images/carbohydrates-on.gif"; 
	
	fats0=new Image();
	fats0.src="../images/fats-off.gif";
	fats1=new Image();
	fats1.src="../images/fats-on.gif";
	
	protein0=new Image();
	protein0.src="../images/protein-off.gif";
	protein1=new Image();
	protein1.src="../images/protein-on.gif";
	
	fiber0=new Image();
	fiber0.src="../images/fiber-off.gif";
	fiber1=new Image();
	fiber1.src="../images/fiber-on.gif";
	
	grains0=new Image();
	grains0.src="../images/grains-off.gif";
	grains1=new Image();
	grains1.src="../images/grains-on.gif";
	
	sugar0=new Image();
	sugar0.src="../images/sugar-off.gif";
	sugar1=new Image();
	sugar1.src="../images/sugar-on.gif";
	
	sodium0=new Image();
	sodium0.src="../images/sodium-off.gif";
	sodium1=new Image();
	sodium1.src="../images/sodium-on.gif";
	
	vitamins0=new Image();
	vitamins0.src="../images/vitamins-off.gif";
	vitamins1=new Image();
	vitamins1.src="../images/vitamins-on.gif";
	
	carbtypes0=new Image();
	carbtypes0.src="../images/carbtypes-off.gif";
	carbtypes1=new Image();
	carbtypes1.src="../images/carbtypes-on.gif";
	
	muchcarb0=new Image();
	muchcarb0.src="../images/muchcarb-off.gif";
	muchcarb1=new Image();
	muchcarb1.src="../images/muchcarb-on.gif";
	
	choosecarbs0=new Image();
	choosecarbs0.src="../images/choosecarbs-off.gif";
	choosecarbs1=new Image();
	choosecarbs1.src="../images/choosecarbs-on.gif";
	
	unsaturated0=new Image();
	unsaturated0.src="../images/unsaturated-off.gif";
	unsaturated1=new Image();
	unsaturated1.src="../images/unsaturated-on.gif";
	
	trans0=new Image();
	trans0.src="../images/trans-off.gif";
	trans1=new Image();
	trans1.src="../images/trans-on.gif";
	
	muchfat0=new Image();
	muchfat0.src="../images/muchfat-off.gif";
	muchfat1=new Image();
	muchfat1.src="../images/muchfat-on.gif";
	
	moderating0=new Image();
	moderating0.src="../images/moderating-off.gif";
	moderating1=new Image();
	moderating1.src="../images/moderating-on.gif";
	
	findingp0=new Image();
	findingp0.src="../images/findingp-off.gif";
	findingp1=new Image();
	findingp1.src="../images/findingp-on.gif";
	
	muchp0=new Image();
	muchp0.src="../images/muchp-off.gif";
	muchp1=new Image();
	muchp1.src="../images/muchp-on.gif";
	
	choosingp0=new Image();
	choosingp0.src="../images/choosingp-off.gif";
	choosingp1=new Image();
	choosingp1.src="../images/choosingp-on.gif";
	
	insoluble0=new Image();
	insoluble0.src="../images/insoluble-off.gif";
	insoluble1=new Image();
	insoluble1.src="../images/insoluble-on.gif";
	
	muchf0=new Image();
	muchf0.src="../images/muchf-off.gif";
	muchf1=new Image();
	muchf1.src="../images/muchf-on.gif";
	
	tipsf0=new Image();
	tipsf0.src="../images/tipsf-off.gif";
	tipsf1=new Image();
	tipsf1.src="../images/tipsf-on.gif";
	
	muchwg0=new Image();
	muchwg0.src="../images/muchwg-off.gif";
	muchwg1=new Image();
	muchwg1.src="../images/muchwg-on.gif";
	
	wgmyths0=new Image();
	wgmyths0.src="../images/wgmyths-off.gif";
	wgmyths1=new Image();
	wgmyths1.src="../images/wgmyths-on.gif";
	
	wgtips0=new Image();
	wgtips0.src="../images/wgtips-off.gif";
	wgtips1=new Image();
	wgtips1.src="../images/wgtips-on.gif";
	
	sugarh0=new Image();
	sugarh0.src="../images/sugarh-off.gif";
	sugarh1=new Image();
	sugarh1.src="../images/sugarh-on.gif";
	
	presweet0=new Image();
	presweet0.src="../images/presweet-off.gif";
	presweet1=new Image();
	presweet1.src="../images/presweet-on.gif";
	
	supp0=new Image();
	supp0.src="../images/supp-off.gif";
	supp1=new Image();
	supp1.src="../images/supp-on.gif";
	
	ssources0=new Image();
	ssources0.src="../images/ssources-off.gif";
	ssources1=new Image();
	ssources1.src="../images/ssources-on.gif";
	
	muchsod0=new Image();
	muchsod0.src="../images/muchsod-off.gif";
	muchsod1=new Image();
	muchsod1.src="../images/muchsod-on.gif";
	
	tipssod0=new Image();
	tipssod0.src="../images/tipssod-off.gif";
	tipssod1=new Image();
	tipssod1.src="../images/tipssod-on.gif";
	
	aboutv0=new Image();
	aboutv0.src="../images/aboutv-off.gif";
	aboutv1=new Image();
	aboutv1.src="../images/aboutv-on.gif";
	
	aboutm0=new Image();
	aboutm0.src="../images/aboutm-off.gif";
	aboutm1=new Image();
	aboutm1.src="../images/aboutm-on.gif";
}

// left nav functions

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

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


// gda tool popup function

function gdaPopup() {
	window.open('../gda-tool/GDA3.html','GDA','width=970,height=790,resizable=yes,toolbar=no,scrollbars=yes');
}