if (document.images) {
	img0on = new Image();		
	img0on.src = "images/homepage1.gif"; 
	img0off = new Image();		  	
	img0off.src = "images/homepage.gif"; 
	img1on = new Image();		
	img1on.src = "images/fengshui1.gif"; 
	img1off = new Image();		  	
	img1off.src = "images/fengshui.gif"; 
	img2on = new Image();		
	img2on.src = "images/success1.gif"; 
	img2off = new Image();		  	
	img2off.src = "images/success.gif"; 
	img3on = new Image();		
	img3on.src = "images/consult1.gif"; 
	img3off = new Image();		  	
	img3off.src = "images/consult.gif"; 
	img4on = new Image();		
	img4on.src = "images/products1.gif"; 
	img4off = new Image();		  	
	img4off.src = "images/products.gif"; 
	img5on = new Image();		
	img5on.src = "images/whatsnew1.gif"; 
	img5off = new Image();		  	
	img5off.src = "images/whatsnew.gif"; 
	img6on = new Image();		
	img6on.src = "images/chiquiz1.gif"; 
	img6off = new Image();		  	
	img6off.src = "images/chiquiz.gif"; 
	img7on = new Image();		
	img7on.src = "images/company1.gif"; 
	img7off = new Image();		  	
	img7off.src = "images/company.gif"; 
	img8on = new Image();		
	img8on.src = "images/suzee1.gif"; 
	img8off = new Image();		  	
	img8off.src = "images/suzee.gif"; 
	img9on = new Image();		
	img9on.src = "images/seminars1.gif"; 
	img9off = new Image();		  	
	img9off.src = "images/seminars.gif"; 
	img10on = new Image();		
	img10on.src = "images/references1.gif"; 
	img10off = new Image();		  	
	img10off.src = "images/references.gif"; 
	img11on = new Image();		
	img11on.src = "images/tips1.gif"; 
	img11off = new Image();		  	
	img11off.src = "images/tips.gif"; 
}

function imgOn(imgName,imgNum) {
        if (document.images) {
            document[imgName].src = eval(imgNum + "on.src");
        }
}
			
function imgOff(imgName,imgNum) {
	if (document.images) {
		document[imgName].src = eval(imgNum + "off.src");
        }
}

function imgOnA(imgName) {
        if (document.images) {
            document[imgName].src = "images/" + imgName +"1.gif";
        }
}
			
function imgOffA(imgName) {
        if (document.images) {
            document[imgName].src = "images/" + imgName +".gif";
        }
}

function checkQuiz()
{
	form = document.quiz;
	for (i=0;i<form.elements.length;i++)
	{
		if (form.elements[i].value=="")
		{
			alert('You have left a required field blank. Please fill in all required fields.');
		form.elements[i].focus();
		return false;
		}
	}
	birthYear = form.year.value;
	if (birthYear.length<4)
	{
		alert('You have not entered a 4-digit number for the birth year. Please enter a 4-digit birth year (e.g. "1967")');
		form.year.focus();
		return false;
	}
	return true;
}