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.onmousedown=pageMousedown;else document.addEventListener("mousedown",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);}
}

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 buttonMouseover(event, menuId){
	var button;
	if(browser.isIE)button=window.event.srcElement;else button=event.currentTarget;
	if(activeButton!=null&&activeButton!=button)buttonClick(event, menuId);
}


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;}
	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";}
	activeButton = null;
}

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;
}

function findPosX(obj) {
	var curleft = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
		}
	}
	return curleft;
}

function findPosY(obj) {
	var curtop = 0;
	if (obj.offsetParent) {
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curtop += obj.offsetTop
		}
	}
	return curtop;
}

function checkFormNL(pFormName) {	//v1.1 by dash mp
	try {
		var pValue, pType, pName, pMsg="", pRegExp;
		var jColorOK = "#ffffff", jColorNotOK = "#FFB7B7";
		for (var i = 0; i < document.forms[pFormName].elements.length; i++) {   
			pName = document.forms[pFormName].elements[i].name; pType = document.forms[pFormName].elements[i].type;
			if  (pType.toUpperCase() == 'SELECT') { pValue = document.forms[pFormName].elements[i].options[document.forms[pFormName].elements[i].selectedIndex].value;
			} else { pValue = document.forms[pFormName].elements[i].value; }
			if (pValue == null) { pValue = ""; }
			if ((pName.indexOf("!") > -1) && (pName.indexOf("##") > -1)) { pRegExp = new RegExp(pName.substring((pName.indexOf("!")+1),pName.indexOf("##")),"i");
				if (pRegExp.test(pValue) == false) { pMsg += "- " + pName.substring(0,pName.indexOf("$$")) + "\n"; document.forms[pFormName].elements[i].style.backgroundColor = jColorNotOK; } else { document.forms[pFormName].elements[i].style.backgroundColor = jColorOK; }
		} }
		if (pMsg.length > 0) { alert(document.forms[pFormName].elements['MsgHead'].value+"\n \n"+pMsg+"\n "+document.forms[pFormName].elements['MsgFoot'].value); return false; }

		//set page action
		document.forms[pFormName].action = '/sk-contact.asp';
		document.forms[pFormName].elements['sendingformallowed'].value = '556d699968986a989a9869986e989a986c709d98989898989b996c986a9869';
		document.getElementById("Verstuur").disabled=true;
		return true;
	} catch (excp) { alert(excp+'Webbrowser is not supported.'); return false; }
}