var prev = "none";
var current= "none";

function navclick(current_item){
	
	if(current!="none") prev = current;
	current = current_item + "";
		
	document.getElementById(current).style.display = "inline";
	
	if(prev == "none") {
		if(current!="atwork") document.getElementById("atwork").style.display = "none";
		if(current!="career") document.getElementById("career").style.display = "none";
		if(current!="jobseekers") document.getElementById("jobseekers").style.display = "none";
		if(current!="salary") document.getElementById("salary").style.display = "none";
		if(current!="sectors") document.getElementById("sectors").style.display = "none";
	}
	else {
		document.getElementById(prev).style.display = "none";		
	}
}