function swapImg(vala,valb){
	var holder = vala.childNodes;
	for(var i=0;i<holder.length;i++){
		if(holder[i].tagName=="IMG"){
			holder[i].setAttribute("src",valb);
		}
	}
}
function unswapImg(vala,valb){
	var holder = vala.childNodes;
	for(var i=0;i<holder.length;i++){
		if(holder[i].tagName=="IMG"){
			holder[i].setAttribute("src",valb);
		}
	}
}

var curr=0;
function swapTab(vala,valb){
	var el = document.getElementById("tab"+vala);
	var elch = el.childNodes;
	if(vala==curr || valb!=1){
		for(var i=0;i<elch.length;i++){
			if(elch[i].tagName=="IMG"){
				elch[i].setAttribute("src",eval("imga"+vala));
			}
		}
	}
}
function unswapTab(vala){
	var el = document.getElementById("tab"+vala);
	var elch = el.childNodes;
	if(vala!=curr){
		for(var i=0;i<elch.length;i++){
			if(elch[i].tagName=="IMG"){
				elch[i].setAttribute("src",eval("imgb"+vala));
			}
		}
	}
}
function resetTabs(){
	for(var i=0;i<4;i++){
		if(document.getElementById("tab"+i)){
			var el = document.getElementById("tab"+i);
			var elch = el.childNodes;
			for(var j=0;j<elch.length;j++){
				if(elch[j].tagName=="IMG"){
					elch[j].setAttribute("src",eval("imgb"+i));
				}
			}
		}
	}
}
function resetTabInfo(){
	for(var i=0;i<4;i++){
		if(document.getElementById("tabinfo"+i)){
			var holder = document.getElementById("tabinfo"+i);
			holder.style.display = "none";		
		}
	}
}
function showTab(val){
	resetTabInfo();
	resetTabs();
	curr = val;
	if (document.getElementById("tabinfo"+val)){
		var holder = document.getElementById("tabinfo"+val);
		holder.style.display = "block";
	}
	swapTab(val,1);
}