// JavaScript Document

function changeNav(nr,what,img){
	
	nr = "nav"+nr;
	
	if(what == 1){
		if(img == "up"){
			document.getElementById(nr).style.backgroundImage = "url(images/nav_up_active.gif)";
		} else if(img == "down"){
			document.getElementById(nr).style.backgroundImage = "url(images/nav_down_active.gif)";
		}
	}
	if(what == 0){
		if(img == "up"){
			document.getElementById(nr).style.backgroundImage = "url(images/nav_up_inactive.gif)";
		} else if(img == "down"){
			document.getElementById(nr).style.backgroundImage = "url(images/nav_down_inactive.gif)";
		}
	}
	
}