var outName;

function changeNavImg(ifIn, id){
	name = id;
	if(ifIn){name =	name + "_on.gif";}
	else{name = name + ".gif";}
	document.getElementById(id).src = "/images/nav/" + name;
}

function changeBgImg(ifIn, id){
	if(document.all){
		name = id;
		if(ifIn){name = name + "_on.gif";}
		else{name = name + ".gif";}
		document.getElementById(id).style.backgroundImage = "url(/images/" + name + ")";
	}
}

function changeRegisterImg(ifIn, id){
	
	var name, ob, obSrc;
	
	name = id;
	
	if(ifIn){
		name =	name + "_on.gif";
		ob = getElem('id', id, '')
		obSrc = ob.src;
		outName = obSrc.split("/").pop();
	}
	else{
		if(outName != ''){name = outName;}
		else{name = name + "_on.gif";}
	}
	document.getElementById(id).src = "/images/shared/" + name;
}

function switshRegister(p1, p2, p3, p4, p5){
	
	var divs, buttons, counter;
	
	buttons = p4.split(",");
	divs		=	p5.split(",");

	// p4 buttons set off
	counter = 0;
	while(counter <= (buttons.length - 1)) {
		buttonOff = getElem(p1, buttons[counter], '');
		buttonOff.src = "/images/shared/" + buttons[counter] +".gif";
		counter++;
	}
	
	// display p5 divs = none
	counter = 0;
	while(counter <= (divs.length - 1)) {
		divsOff = getElem(p1, divs[counter], '');
		divsOff.style.display = 'none';
		counter++;
	}
	
	// button p3 on
	obButton = getElem(p1, p3, '');
	obButton.src = "/images/shared/" + p3 +"_on.gif";
	
	// need name by changeRegisterImg
	outName = p3 +"_on.gif";
	
	// display p2 inline
	ob = getElem(p1, p2, '');
	ob.style.display = 'inline';
}