var object=null;
function languageOver(objectID){
	object=document.getElementById(objectID);
	object.src='http://www.medadventure.com/images/flag_selected_'+objectID+'.png';
}
function languageOut(objectID){
	object=document.getElementById(objectID);
	object.src='http://www.medadventure.com/images/flag_'+objectID+'.png';
}

function zoomNews(header, text)
{
	zoom = open('','zoom_news','width=500,height=500, status=no,toolbar=no,menubar=no,resizable=yes,scrollbars=yes,top=100px,left=100px');
	zoom.document.open();
	zoom.document.write('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="nl" lang="nl"><head><title>Zoom News</title><link rel="stylesheet" type="text/css" href="http://www.medadventure.com/stylesheets/default.css"></head><body class="popup"><div style="text-align:left;width:100%;"><table class="content_small"><tr class="content_small"><td class="content_small" width="280"><b>'+header+'</b></td></tr><tr class="content_small"><td class="content_small">'+text+'</td></tr><tr><td valign="middle" align="right" class="content_small"><a href="javascript:self.close();">Sluiten >></a></td></tr></table></div></body></html>');
	zoom.document.close();
}
/*try menu*/
function visibilityLink(element)
	{
		var objectID=element;
		var object=document.getElementById(objectID); 
		popUp(objectID, 'pointer');
	}
function hideLink(element)
	{
		var objectID=element;
		var object=document.getElementById(objectID); 
		popHide('pointer');
	}

function findPosY(obj)
	{
		var curtop = 0;
		if (obj.offsetParent)
		{
			while (obj.offsetParent)
			{
				curtop += obj.offsetTop
				obj = obj.offsetParent;
			}
		}
		else if (obj.y)
			curtop += obj.y;
		return curtop;
	}
function findPosX(obj)
	{
		var curleft = 0;
		if (obj.offsetParent)
		{
			while (obj.offsetParent)
			{
				curleft += obj.offsetLeft
				obj = obj.offsetParent;
			}
		}
		else if (obj.x)
			curleft += obj.x;
		return curleft;
	}
function showdimW(objectID)
	{
		var object=document.getElementById(objectID);
		var widthObj=object.offsetWidth;
		return widthObj;
	}
function showdimH(objectID)
	{
		var object=document.getElementById(objectID);
		var heightObj=object.offsetHeight;
		return heightObj;
	}
function showoffsetT(objectID)
{
var object=document.getElementById(objectID);
var offsetTObj=object.offsetTop;
return offsetTObj;
}
function showoffsetR(objectID)
{
var object=document.getElementById(objectID);
var widthObj=object.offsetWidth;
var offsetRObj=object.offsetLeft+widthObj;
return offsetRObj;
}
var objPopUp=null;
function popUp(event, objectID)
	{
		var objPopTrig=document.getElementById(event);
		var objPopUp=document.getElementById(objectID);
		var xPos=findPosX(objPopTrig);
		var yPos=findPosY(objPopTrig);
		var width=showdimW(event);
		var center=Math.round(eval(width/2)-5);
		var height=showdimH(event);
		xPos=eval(xPos+center);
		yPos=eval(yPos-12);
		objPopUp.style.left=xPos+'px';
		objPopUp.style.top=yPos+'px';
		objPopUp.style.visibility='visible';
	}
function popHide(objectID)
	{
		var objPopUp=document.getElementById(objectID);
		objPopUp.style.visibility='hidden';
		objPopUp=null;
	}
function popUpMenu(event, objectID)
	{
		var objPopTrig=document.getElementById(event);
		var objPopUp=document.getElementById(objectID);
		var xPos=findPosX(objPopTrig);
		var yPos=findPosY(objPopTrig);
		var height=showdimH(event);
		yPos=eval(yPos+height+5);
		objPopUp.style.left=xPos+'px';
		objPopUp.style.top=yPos+'px';
		objPopUp.style.visibility='visible';
	}
function popHideMenu(objectID)
	{
		var objPopUp=document.getElementById(objectID);
		objPopUp.style.visibility='hidden';
		objPopUp=null;
	}

/* poging drop down menu */
var objNavMenu=null;
var prevObjNavMenu=null;
var objNavMenuSpacer=null;
var prevObjNavMenuSpacer=null;
var prevObjDropMenu=null;
var numDropMenu=8;

var bgLinkColor='#cccccc';
var bgLinkHover='#ffffff';
var bgLinkActive='#000000';
var linkColor='#9A9EAC';
var linkHover='#FFAA00';
var linkActive='#ffffff';

var isIE=null;
if(navigator.appName.indexOf('Microsoft Internet Explorer')!=-1) isIE=1;
function initDropMenu()
{
	document.onclick=hideDropMenu;
	/*
	for(i=1; i<=numDropMenu; i++){
		menuName='dropMenu'+i;
		navName='navMenu'+i;
		objDropMenu=document.getElementById(menuName);
		objNavMenu==document.getElementById(navName);
		objDropMenu.style.visibility='hidden';
		alert(objNavMenu);
		objNavMenu.onmouseover=menuHover;
		objNavMenu.onmouseout=menuOut;
		objNavMenu.onclick=showDropMenu;
	}
	*/
	objNavMenu=null;
	objNavMenuSpacer=null;
	return;
}

/*SLIDE SHOW*/
var totalPages;

function nextSlide()
	{
		var objectLenght=obj[active].id.length;
		var objectNumber=obj[active].id.substring(4,objectLenght);
		if(totalPages==objectNumber)
		{
			objectNumber=1;
		}else{
			objectNumber++;
		}
		ChangePage("page"+objectNumber);
	}

function previousSlide()
	{
		var objectLenght=obj[active].id.length;
		var objectNumber=obj[active].id.substring(4,objectLenght);
		if(objectNumber==1)
		{
			objectNumber=totalPages;
		}else{
			objectNumber--;
		}
		ChangePage("page"+objectNumber);
	}
	/*scroll*/
	
timerID = null;
var active = 'page1';
var picture=new Array();
function ChangePage(num){
	
	var objectLenght=obj[active].id.length;
	var objectNumber=obj[active].id.substring(4,objectLenght);
		document.getElementById("thumb_"+objectNumber).style.border="1px solid #8A8F9F";
		if(document.getElementById){
			/*eventueel verstoppen van back en forward knoppen
			if(num=="page1"){
				var objectID='back';
				var object=document.getElementById(objectID)
				object.style.visibility="hidden";
				var objectID='forward';
				var object=document.getElementById(objectID)
				object.style.visibility="hidden";
			}else{
				var objectID='back';
				var object=document.getElementById(objectID)
				object.style.visibility="visible";
				var objectID='forward';
				var object=document.getElementById(objectID)
				object.style.visibility="visible";
			}*/
			var objectID='back';
			var object=document.getElementById(objectID)
			object.style.visibility="visible";
			var objectID='forward';
			var object=document.getElementById(objectID)
			object.style.visibility="visible";
    		obj[active].style.visibility = "hidden";
    		active = num;
    		obj[active].style.top = 0;
    		obj[active].style.visibility = "visible";
    	}
	var objectLenght=obj[active].id.length;
	var objectNumber=obj[active].id.substring(4,objectLenght);
	document.getElementById("thumb_"+objectNumber).style.border="1px solid #3366FF";
	if(objectNumber>=2){
		document.getElementById("picture"+objectNumber).src=picture[objectNumber];
	}
}
function ThumbOver(num){
	if(active!=num){
		var objectLenght=obj[num].id.length;
		var objectNumber=obj[num].id.substring(4,objectLenght);
		document.getElementById("thumb_"+objectNumber).style.border="1px solid #FFAA00";
	}
	
}
function ThumbOut(num){
	if(active!=num){
		var objectLenght=obj[num].id.length;
		var objectNumber=obj[num].id.substring(4,objectLenght);
		document.getElementById("thumb_"+objectNumber).style.border="1px solid #8A8F9F";
	}
	
}
function ScrollUp(speed){
    	if(document.getElementById){
    		if(parseInt(obj[active].style.top) < 0){
    			obj[active].style.top = parseInt(obj[active].style.top) + speed + "px";
		}
    		timerID = setTimeout("ScrollUp("+speed+")",30);
    	}
}

function ScrollDown(speed){
	  	if(document.getElementById){                        
    		if(parseInt(obj[active].style.top) > document.getElementById('content').offsetHeight - obj[active].offsetHeight){ 
    			obj[active].style.top = parseInt(obj[active].style.top) - speed + "px";
		}
    		timerID = setTimeout("ScrollDown("+speed+")",30);
    	}
}

function ScrollStop(){
    	if(document.getElementById){
    		clearTimeout(timerID);
    	}
}
function ScrollPageInit() {
    	if(document.getElementById){
    		obj = document.getElementById("content").getElementsByTagName("div");
    		obj['page1'].style.visibility = "visible";
    		obj['page1'].style.top = 0;	
    	}	
    	if(document.addEventListener){
    		for(i=0;i<document.getElementsByTagName('a').length;i++){
    			document.getElementsByTagName('a')[i].style.position = "relative";
		}
    	}
}
