currentChosen = '';
lastImage = '';
lastImageSrc = '';
function hideImages(){
	setImage('imagea','none');
	setImage('image2','none');
	setImage('image3','none');
};
function hideAll(){
	setImage('div1','none');
	setImage('div2','none');
	setImage('div3','none');
	setImage('div4','none');
	setImage('div5','none');
	setImage('div6','none');
	setImage('div7','none');
	setImage('div8' ,'none');
}
function hidImg(){
	setVis('himg1b','himg1a');
	setVis('himg2b','himg2a');
	setVis('himg3b','himg3a');
	setVis('himg4b','himg4a');
	setVis('himg5b','himg5a');
	setVis('himg6b','himg6a');
	setVis('himg7b','himg7a');
	setVis('himg8b','himg8a');
}
function setVisImg(visId){
	if (visId!=currentChosen){
		setImage(currentChosen,'none');
		setImage(visId,'');
		currentChosen = visId;
	}
}
function setVis(visId,hidID){
	setImage(hidID,'none');
	setImage(visId,'');
}
function setImage(imgID,displayVal){
	imgObj = document.getElementById(imgID);
	if(imgObj){
		imgObj.style.display = displayVal;
	}
}
function setImageSrc(imgID,srcObj){
		lastImageSrc = srcObj
		document[imgID.replace('div','img')].src=srcObj;
}

function setImageOver(imgID,srcObj){
	lastImage= imgID
	lastImageSrc = document[imgID].src
	document[imgID].src=srcObj;
}
function setImageOut(imgID){
	document[lastImage].src=lastImageSrc;
}
function setImageLastSrc(srcObj){
	setImageSrc(currentChosen,srcObj)
}