function Changeview(level, niv) 
	{	
		var levelid = document.getElementById(level).style.display;
		var imagename = 'bt' + level;
		if(levelid == 'block')
			{
			document.getElementById(level).style.display='none';	        		
			movepic(imagename, BaseURL + 'content/images/Trans_plusje.gif');
			}
		else
			{			
			document.getElementById(level).style.display='block';
			movepic(imagename, BaseURL + 'content/images/Trans_minnetje.gif');
			}
		document.getElementById('maintable').style.display='none';
		document.getElementById('maintable').style.display='block';	
			
		//make the old values blue
		if (document.getElementById('hidNiv1').value != -1){
			document.getElementById('Q' + document.getElementById('hidNiv1').value).style.backgroundColor = "#0877B1";
		}
		
		if (document.getElementById('hidNiv2').value != -1){
			document.getElementById('Q' + document.getElementById('hidNiv2').value).style.backgroundColor = "#0877B1";
		}
		
		if (document.getElementById('hidNiv3').value != -1){
			document.getElementById('Q' + document.getElementById('hidNiv3').value).style.backgroundColor = "#0877B1";
		}
		
		setHiddenfields(level, niv, false, false);
		
		//setSelected();		
	}	
    
    function movepic(img_name,img_src) 
    {
		try{
			document.getElementById(img_name).src=img_src;
		}
		catch(err){}
    }
    
    function setHover(imgID, isTop){
		/*alert(imgID);
		alert(document.getElementById(imgID));*/
		
		if (!isTop){
			var imagename = 'bt' + imgID.substr(1);
			
			var levelid 
			try {
				levelid = document.getElementById(imgID.substr(1)).style.display ;
			}
			catch (err){
				levelid = 'none'
			}
					
			if(levelid == 'block'){
				movepic(imagename, BaseURL + 'content/images/Trans_minnetje.gif');
			}
			else{			
				movepic(imagename, BaseURL + 'content/images/Trans_plusje.gif');
			}
			 
		}
		document.getElementById(imgID).style.backgroundColor = "#F68F1E"; 
		setSelected(isTop);
    }
    
    function setHoverOff(imgID, isTop){
				
		if (!isTop){
			
			
			if (imgID != 'Q'+document.getElementById('hidNiv1').value || imgID != 'Q'+document.getElementById('hidNiv2').value || imgID != 'Q'+document.getElementById('hidNiv3').value) 
			{
				document.getElementById(imgID).style.backgroundColor = "#0877B1";
			}
			
			var imagename = 'bt' + imgID.substr(1);
			var levelid 
			try {
				levelid = document.getElementById(imgID.substr(1)).style.display ;
			}
			catch (err){
				levelid = 'none'
			}
				
			if(levelid == 'block'){
				movepic(imagename, BaseURL + 'content/images/Trans_minnetje.gif');
			}
			else{			
				movepic(imagename, BaseURL + 'content/images/Trans_plusje.gif');
			}
		}
		
		if (imgID != 'T'+document.getElementById('hidNivTop').value ) 
		{
			document.getElementById(imgID).style.backgroundColor = "#0877B1";
		}
		setSelected(isTop);	 
    }
    
    function setSelected(isTop){
		if (!isTop){
				if (document.getElementById('hidNiv1').value != -1){
					document.getElementById('Q' + document.getElementById('hidNiv1').value).style.backgroundColor = "#F68F1E";
					document.getElementById('Q' + document.getElementById('hidNiv1').value).style.borderBottom 	= "solid 1px #83BBD8";
					movepic('bt' + document.getElementById('hidNiv1').value, BaseURL + 'content/images/Trans_minnetje.gif');						
				}
				if (document.getElementById('hidNiv2').value != -1){
					document.getElementById('Q' + document.getElementById('hidNiv2').value).style.backgroundColor = "#F68F1E";
					document.getElementById('Q' + document.getElementById('hidNiv2').value).style.borderBottom 	= "solid 1px #83BBD8";		
					movepic('bt' + document.getElementById('hidNiv2').value, BaseURL + 'content/images/Trans_minnetje.gif');				
				}
				
				if (document.getElementById('hidNiv3').value != -1){
					document.getElementById('Q' + document.getElementById('hidNiv3').value).style.backgroundColor = "#F68F1E";
					document.getElementById('Q' + document.getElementById('hidNiv3').value).style.borderBottom 	= "solid 1px #83BBD8";
					movepic('bt' + document.getElementById('hidNiv3').value, BaseURL + 'content/images/Trans_minnetje.gif');					
				}
		}
		if (document.getElementById('hidNivTop').value != -1){
			document.getElementById('T' + document.getElementById('hidNivTop').value).style.backgroundColor = "#F68F1E";
			document.getElementById('a' + document.getElementById('hidNivTop').value + 'a').style.color = "#EFF6FA";									
		}
				 
    }
    
   function setHiddenfields(level, niv, isTop, doSetSelected){
       
       if (doSetSelected == null){
			doSetSelected = true;
       }
       
    //set new values to be the new color
		if (niv == 1){
			document.getElementById('hidNiv1').value  = level;
		}
		else if (niv == 2){
			document.getElementById('hidNiv2').value  = level;
		}
		else if (niv == 3){
			document.getElementById('hidNiv3').value  = level;
		}
		
		if (niv == 0){
			document.getElementById('hidNivTop').value  = level;
		}
		
		if (doSetSelected){
			setSelected(isTop);	
		}
    }