function toggleMenu(currMenu) {
	if (document.getElementById) {
		thisMenu = document.getElementById(currMenu).style;
		iname = currMenu + "i";
		thisIcon = document.getElementById(iname);
		
		if (thisMenu.display == "block") {
			thisMenu.display = "none";
			thisIcon.src="../images/plus.png";		
			}
		else	{
			thisMenu.display = "block";
			thisIcon.src="../images/minus.png";
		}
		return false
	}
	else {
		return true
	}
}