function setMenuActive(idObject,prevActive){
	if(!prevActive) {
		var obj = document.getElementById(idObject);
		if(obj.className == "menuLink menuFirst"){
			obj.className = "menuLinkActive menuFirst";
			var spans = obj.getElementsByTagName("span");
			for(var i=0;i<spans.length;i++){
				if(spans[i].className == "menuLeft")		spans[i].className = "menuLeftActive";
			}
		}else{
			obj.className = "menuLinkActive";
		}
	}
}

function setmenuCentralActive(idObject,prevActive){
	if(!prevActive) {
		var obj = document.getElementById(idObject);
		obj.className = "menuCentralLinkActive";
		var spans = obj.getElementsByTagName("span");
		for(var i=0;i<spans.length;i++){
			if(spans[i].className == "menuCentralLeft")			spans[i].className = "menuCentralLeftActive";
			if(spans[i].className == "menuCentralContent")		spans[i].className = "menuCentralContentActive";
			if(spans[i].className == "menuCentralRight")		spans[i].className = "menuCentralRightActive";
		}
	}
}

function setMenuInactive(idObject,prevActive){
	if(!prevActive) {
		var obj = document.getElementById(idObject);
		if(obj.className == "menuLinkActive menuFirst"){
			obj.className = "menuLink menuFirst";
			var spans = obj.getElementsByTagName("span");
			for(var i=0;i<spans.length;i++){
				if(spans[i].className == "menuLeftActive")		spans[i].className = "menuLeft";
			}
		}else{
			obj.className = "menuLink";
		}
	}
}

function setmenuCentralInactive(idObject,prevActive){
	if(!prevActive) {
		var obj = document.getElementById(idObject);	
		obj.className = "menuCentralLink";
		var spans = obj.getElementsByTagName("span");
		for(var i=0;i<spans.length;i++){
			if(spans[i].className == "menuCentralLeftActive")			spans[i].className = "menuCentralLeft";
			if(spans[i].className == "menuCentralContentActive")		spans[i].className = "menuCentralContent";
			if(spans[i].className == "menuCentralRightActive")			spans[i].className = "menuCentralRight";
		}
	}
}