	<!-- hide from older Browser

	var clearImg = "images/clear.gif";

	var rightArrow = "images/arrow_red_big.gif";
	var leftArrow = "images/arrow_red_big.gif";
	
	var menu = new Array();
	var menuExtract = 0;
	var formerLink;
	var formerLinkIndex;
	var formerSubLink;
	var formerSubLinkIndex=-1;
	var subNav = new Array();
	var activeChap = 0;
	var activeSub = 0;
	var activeSubNav = new Array();
		
	function loadMenu(name, status, chapter, subchapter, location, img) {  
		menu[menuExtract] = new Array(6);
		menu[menuExtract][0] = name;
		menu[menuExtract][1] = status;
		menu[menuExtract][2] = chapter;
		menu[menuExtract][3] = subchapter;
		menu[menuExtract][4] = location;
		menu[menuExtract][5] = new Image();
		menu[menuExtract][5].src = img; 
		menuExtract++;
	}
		
	function findLink(linkName) {
		var i;
		for ( i=0; i<document.links.length; i++ ) {
			if ( document.links[i].href.indexOf(linkName) != -1 ) {
				return i;		
	   		}
		}
		return -1;
	}
	
	function subMenu(chapNr) {
		var i;
		subNav.length=0;
		for ( i = 0; i < menuExtract; i++ ) {
			if ( ( chapNr == menu[i][2] ) && ( menu[i][3] != 0 ) ) {
				subNav[subNav.length] = menu[i][0];
			}
		}
	}
		
	function menuOn(name){
		var i;
		for ( i = 0; i < menuExtract; i++ ) {
	    	if (name == menu[i][0]) {		
				var actChap = menu[i][2];						
				if (menu[i][3]==0) {				
					var formerChapImg='black_'+ activeChap; 
					var formerSubImg='blue_'+ activeSub;
					var chapImg='black_'+actChap;
					var chapLink='#chapLink_'+actChap;
					var chapIndex = findLink(chapLink);			
					if ( formerChapImg != 'black_0' ) {
						document.images[formerChapImg].src = clearImg;
					}
					if ( formerSubImg != 'blue_0' ) {
							document.images[formerSubImg].src = clearImg;
					}


					for ( actNav = 0; actNav < activeSubNav.length; actNav++ ) {
						var subImg='sub_'+ activeSubNav[actNav].charAt(1);
						document.images[subImg].src = clearImg;	
												
					}
			

					document.images[chapImg].src = leftArrow;	
					window.status=menu[i][1];
					activeChap = actChap
					formerLinkIndex=chapIndex;
					if ( chapIndex != -1 ) {
						formerLink=document.links[chapIndex].href;
						document.links[chapIndex].href=menu[i][4];	
					}
					else {
						alert('Ein unerwarteter Fehler ist aufgetreten.');
					}	
					subMenu(actChap);
					activeSubNav.length = 0;
					for ( nav = 0; nav < subNav.length; nav++ ) {
						for ( i = 0; i < menuExtract; i++ ) { 
							if ( menu[i][0] == subNav[nav] ) {
								var subImg='sub_'+ menu[i][3];
								var subImgSrc=menu[i][5].src;
								document.images[subImg].src = subImgSrc;
								activeSubNav[activeSubNav.length] = menu[i][2] + menu[i][3];
							}
						}
					}
				}
				else {
					alert('Ein unerwarteter Fehler ist aufgetreten.');
				}
			}
			else if ( name.indexOf("sub_") != -1 ) {
				var i;
				var actSubNav = name.charAt(4);
				for ( i	= 0; i < menuExtract; i++ ) {
					if ( ( menu[i][2] == activeChap ) && ( menu[i][3] == actSubNav ) ) {
						var formerSubImg='blue_'+ activeSub;
						var subImg='blue_' + actSubNav;
						var subLink='#subLink_' + actSubNav;
						var subIndex = findLink(subLink);	
						if ( formerSubImg != 'blue_0' ) {
							document.images[formerSubImg].src = clearImg;
						}
						document.images[subImg].src = rightArrow;	
						window.status=menu[i][1];
						activeSub = actSubNav;
						formerSubLinkIndex=subIndex;
						if ( subIndex != -1 ) {
							formerSubLink=document.links[subIndex].href;
							document.links[subIndex].href=menu[i][4];	
						}
					}				
				}					
			}
		}
	}	
		
	function menuOff(name){
		var i;
		for ( i = 0; i < menuExtract; i++ ) {		   
			if (name == menu[i][0]) {			
				var actChap=menu[i][2];
				if(menu[i][3]==0) {					
					if ( formerLinkIndex != -1 ) {
						document.links[formerLinkIndex].href=formerLink;	
					}
					else {
					}											
				}
				else {
					
				}
			}
			else if ( name.indexOf("sub_") != -1 ) {
				if ( formerSubLinkIndex != -1) {
					document.links[formerSubLinkIndex].href=formerSubLink;
				}				
			}			
		}
	}
		
	// -->