function jump1(){
		
		
		document.getElementById("h_1").style.display = "block";
		document.getElementById("h_2").style.display = "none";
		document.getElementById("h_3").style.display = "none";
		
		document.getElementById("c3").className = "sb";
		document.getElementById("c2").className = "sb";
		document.getElementById("c1").style.background = "#ffffff";
		document.getElementById("c1").style.color = "black";
	
	} 
	
	function jump2(){
	

		document.getElementById("h_1").style.display = "none";
		document.getElementById("h_2").style.display = "block";
		document.getElementById("h_3").style.display = "none";
		
		document.getElementById("c1").style.background = "#6ba0c8";
		document.getElementById("c1").style.color = "white";
		document.getElementById("c2").className = "open";
		document.getElementById("c3").className = "sb";
	
	} 
	
	function jump3(){
	
	
		document.getElementById("h_1").style.display = "none";
		document.getElementById("h_2").style.display = "none";
		document.getElementById("h_3").style.display = "block";
		
		document.getElementById("c3").className = "open";
		document.getElementById("c2").className = "sb";
		document.getElementById("c1").style.background = "#6ba0c8";
		document.getElementById("c1").style.color = "white";
	 
	
	}