function Browser() {
	var ua,s,i;
	this.isIE=false;
	this.isNS=false;
	this.version=null;
	ua = navigator.userAgent;
	s="MSIE";
	if((i=ua.indexOf(s))>=0){
		this.isIE=true;
		this.version=parseFloat(ua.substr(i + s.length));
		return;
	}
	s="Netscape6/";
	if((i=ua.indexOf(s))>=0){
		this.isNS=true;
		this.version=parseFloat(ua.substr(i+s.length));
		return;
	}
	s="Gecko";
	if((i=ua.indexOf(s))>=0){
		this.isNS=true;
		this.version=6.1;
		return;
	}
}

var browser=new Browser();
var activeButton=null;
if(browser.isIE)document.onmousemove=pageMousedown;
else document.addEventListener("mousemove",pageMousedown,true);

function pageMousedown(event){
	var el;
	if(activeButton==null)return;
	if(browser.isIE)el=window.event.srcElement;
	else el=(event.target.tagName?event.target:event.target.parentNode);
	if(el== activeButton)return;
	if(getContainerWith(el,"DIV","menu")==null){
		resetButton(activeButton);
		activeButton = null;
	}
}

function buttonClick(event,menuId){
	var button;
	if(browser.isIE)button=window.event.srcElement;
	else button=event.currentTarget;
	button.blur();
	if(button.menu==null){
		button.menu = document.getElementById(menuId);
		if(button.menu.isInitialized==null)menuInit(button.menu);
	}
	if(activeButton!=null)resetButton(activeButton);
	if(button!=activeButton){
		depressButton(button);
		activeButton = button;
	}
	elseactiveButton=null;
	return false;
}

function depressButton(button){
	var x,y;
	button.className+=" WinKnopActive";
	x=getPageOffsetLeft(button);
	y=getPageOffsetTop(button)+ button.offsetHeight;
	if (browser.isIE){
		x+=button.offsetParent.clientLeft;
		y+=button.offsetParent.clientTop;
                                y = 59;
	}
	button.menu.style.left=x+"px";
	button.menu.style.top=y+"px";
	button.menu.style.visibility="visible";
}

function resetButton(button){
	removeClassName(button,"WinKnopActive");
	if(button.menu!=null){
		closeSubMenu(button.menu);
		button.menu.style.visibility="hidden";
	}
}

function menuMouseover(event){
	var menu;
	if(browser.isIE)menu=getContainerWith(window.event.srcElement,"DIV","menu");
	else menu=event.currentTarget;
	if(menu.activeItem!=null)closeSubMenu(menu);
}

function WinItemMouseover(event,menuId){
	var item,menu,x,y;
	if(browser.isIE)item=getContainerWith(window.event.srcElement,"A","WinItem");
	else item=event.currentTarget;
	menu=getContainerWith(item,"DIV","menu");
	if(menu.activeItem!=null)closeSubMenu(menu);
	menu.activeItem=item;
	item.className+=" WinItemOplichten";
	if(item.subMenu==null){
		item.subMenu=document.getElementById(menuId);
		if(item.subMenu.initialized==null)menuInit(item.subMenu);
	}
	x=getPageOffsetLeft(item)+item.offsetWidth;
	y=getPageOffsetTop(item);
	var maxX,maxY;
	if(browser.isNS){
		maxX=window.scrollX+window.innerWidth;
		maxY=window.scrollY+window.innerHeight;
	}
	if(browser.isIE){
		maxX=(document.documentElement.scrollLeft!=0? 
		document.documentElement.scrollLeft:document.body.scrollLeft)
		+(document.documentElement.clientWidth!=0? 
		document.documentElement.clientWidth:document.body.clientWidth);
		maxY=(document.documentElement.scrollTop!=0? 
		document.documentElement.scrollTop:document.body.scrollTop)
		+(document.documentElement.clientHeight!=0? 
		document.documentElement.clientHeight:document.body.clientHeight);
	}
	maxX-=item.subMenu.offsetWidth;maxY-=item.subMenu.offsetHeight;
	if(x>maxX)x=Math.max(0,x-item.offsetWidth-item.subMenu.offsetWidth
	+(menu.offsetWidth-item.offsetWidth));y=Math.max(0,Math.min(y, maxY));
	item.subMenu.style.left=x+"px";item.subMenu.style.top=y+"px";
	item.subMenu.style.visibility="visible";
	if(browser.isIE)window.event.cancelBubble=true;
	else event.stopPropagation();
}

function closeSubMenu(menu){
	if(menu==null||menu.activeItem==null)return;
	if(menu.activeItem.subMenu!=null){
		closeSubMenu(menu.activeItem.subMenu);
		menu.activeItem.subMenu.style.visibility="hidden";
		menu.activeItem.subMenu=null;
	}
	removeClassName(menu.activeItem,"WinItemOplichten");
	menu.activeItem=null;
}

function menuInit(menu){
	var itemList,spanList;
	var textEl,pijltjeEl;
	var itemWidth;
	var w,dw;
	var i,j;
	if(browser.isIE){
		menu.style.lineHeight="2.5ex";
		spanList=menu.getElementsByTagName("SPAN");
		for(i=0;i< spanList.length; i++)
		if(hasClassName(spanList[i],"WinItempijltje")){
			spanList[i].style.fontFamily="Webdings";spanList[i].firstChild.nodeValue="4";
		}
	}
	itemList=menu.getElementsByTagName("A");
	if(itemList.length>0)itemWidth=itemList[0].offsetWidth;
	else return;
	for(i=0; i < itemList.length; i++) {
		spanList=itemList[i].getElementsByTagName("SPAN")
		textEl=null
		pijltjeEl = null;
		for(j=0; j < spanList.length; j++) {
			if(hasClassName(spanList[j],"WinItemText"))textEl=spanList[j];
			if(hasClassName(spanList[j],"WinItempijltje"))pijltjeEl=spanList[j];
		}
		if(textEl!=null&&pijltjeEl!=null)
		textEl.style.paddingRight=(itemWidth-(textEl.offsetWidth+pijltjeEl.offsetWidth))+"px";
	}
	if (browser.isIE){
		w=itemList[0].offsetWidth;
		itemList[0].style.width=w+"px";
		dw=itemList[0].offsetWidth-w;w-=dw;
		itemList[0].style.width=w+"px";
	}
	menu.initialized=true;
}

function getContainerWith(node,tagName,className){
	while(node!=null){
		if(node.tagName!=null&&node.tagName==tagName&&hasClassName(node,className))
		return node;node=node.parentNode;
	}
	return node;
}

function hasClassName(el,name){
	var i,list;list=el.className.split(" ");
	for(i=0;i<list.length;i++)if(list[i]==name)return true;
	return false;
}

function removeClassName(el,name){
	var i,curList,newList;
	if(el.className==null)return;
	newList=new Array();
	curList=el.className.split(" ");
	for(i=0;i<curList.length;i++)
	if(curList[i]!=name)newList.push(curList[i]);
	el.className=newList.join(" ");
}

function getPageOffsetLeft(el){
	var x;x=el.offsetLeft;
	if(el.offsetParent!=null)x+=getPageOffsetLeft(el.offsetParent);return x;
}

function getPageOffsetTop(el){
	var y;y=el.offsetTop;
	if(el.offsetParent!=null)y+=getPageOffsetTop(el.offsetParent);return y;
}