// JavaScript Document
	function showHideAnswer()
	{
		var numericID = this.id.replace(/[^\d]/g,'');
		var obj = document.getElementById('a' + numericID);
		if(obj.style.display=='block'){
			obj.style.display='none';
		}else{
			obj.style.display='block';
		}		
	}
	
	
	function initShowHideContent()
	{
		var divs = document.getElementsByTagName('DIV');
		for(var no=0;no<divs.length;no++){
			if(divs[no].className=='question'){
				divs[no].onclick = showHideAnswer;
			}	
			
		}	
	}
	
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	initShowHideContent();
	if (document.images) {
		page0_03_over = newImage("images/page0_03-over.jpg");
		page0_04_over = newImage("images/page0_04-over.jpg");
		page0_05_over = newImage("images/page0_05-over.jpg");
		page0_06_over = newImage("images/page0_06-over.jpg");
		page0_07_over = newImage("images/page0_07-over.jpg");
		page0_08_over = newImage("images/page0_08-over.jpg");
		preloadFlag = true;
	}
}