var oldMenuNum = 1;

function changeMenu(i)
{
	if(document.getElementById("mainMenu" + oldMenuNum).getAttribute('className') != null) {
		//IE6 / IE7 :|
		document.getElementById("mainMenu" + oldMenuNum).setAttribute("className","mainMenuItem");
		document.getElementById("menu" + oldMenuNum).setAttribute("className","menuClose");
		
		document.getElementById("mainMenu" + i).setAttribute("className", "mainMenuItem gekozenMenu");
		document.getElementById("menu" + i).setAttribute("className", "menuOpen");
	}
	else
	{
		document.getElementById("mainMenu" + oldMenuNum).setAttribute("class","mainMenuItem");
		document.getElementById("menu" + oldMenuNum).setAttribute("class","menuClose");
		
		document.getElementById("mainMenu" + i).setAttribute("class", "mainMenuItem gekozenMenu");
		document.getElementById("menu" + i).setAttribute("class", "menuOpen");
	}
	oldMenuNum=i;
}