function changeArrows() {
				var a = document.getElementById('contentAnchors');
				var as = a.getElementsByTagName('a');
				for(i=0; i<as.length; i++) {
					as[i].className = '';
				}
			}
			
			function show(num) {
				var elementToHide;
				var rolled = document.getElementById('rolled');
				rolled.style.display = 'block';
				if(num) {
					var dTab = document.getElementById('d'+num);
					dTab.style.display = 'block';
					for(i=1; i<=5; i++) {
						if(i != num) {
							elementToHide = document.getElementById('d'+i);
							elementToHide.style.display = 'none';
						}
					}
				}
			}
			
			function hide() {
				var rolled = document.getElementById('rolled');
				rolled.style.display = 'none';
			}
			
			function activeArrows(obj) {
				changeArrows();
				obj.className = 'rolled2';
			}
			
			function showContent(num, tui) {
				var elementToHide;
				for(i=1; i<=5; i++) {
					elementToHide = document.getElementById('d'+i);
					elementToHide.style.display = 'none';
				}
				var element = document.getElementById('d'+num);
				element.style.display = 'block';
				activeArrows(tui);
			}
			
			function changeVisibility(elm) {
				 
				 if(document.getElementById(elm).style.visibility=="visible") {
					 document.getElementById(elm).style.visibility="hidden";
				 } else {
					 document.getElementById(elm).style.visibility="visible";
				 }
				 
			 };
			 
			/**
			* Show / hide object
			*/
			 function changeDisplay(elm) {
				 
				 if(document.getElementById(elm).style.display=="block") {
					 document.getElementById(elm).style.display="none";
				 } else {
					 document.getElementById(elm).style.display="block";
				 }
				 
			 };