function changeMenuItem(number){

	var menuPicture = document.getElementById("menu"+number);

	var subMenu = document.getElementById("subMenu"+number);

	hideAll();

	menuPicture.src = "img/menu"+number+"_act.gif";

	subMenu.style.display = "inline";

	hideSeparatorImages(number);

}



function hideAll(){

	for(i=1;i<6;i++){

		var tmpImage = document.getElementById("menu"+i);

		var tmpSubMenu = document.getElementById("subMenu"+i);



		tmpImage.src = "img/menu"+i+".gif";

		tmpSubMenu.style.display = "none";

	}

}



function hideSeparatorImages(number){

	for(i=1;i<5;i++){

		var sepImage = document.getElementById("sep"+i);

		if((i==number)||(i==number-1)){

			sepImage.src = "img/sep_empty.gif";

		} else {

			sepImage.src = "img/sep.gif";

		}

	}

}