function show_hide (inComing) {
	
	var active = document.getElementById("ttl_active");
	
	var element = document.getElementById(inComing)
	
	if (active) {
		if (element == null){}
		else if (element.style.display == "none") {
			element.style.display = "";
			active.style.display = "none"
			
			
		}
		else { 
			element.style.display = "none";
			active.style.display = "";
			
		}		
		
	} else {
		
		if (element.style.display == "none") {
			element.style.display = "";		
				
		}
		else { 
			element.style.display = "none";
		}
	}
	
}