function toggleMenu(currMenu) 
{ 
	if (document.all) 
	{ 
		if (currMenu == "menu1") 
		{ 
			eval(document.all.menu1.style).display = "block" 
			eval(document.all.menu2.style).display = "none"
			eval(document.all.menu3.style).display = "none" 
			eval(document.all.menu4.style).display = "none" 
		} 
	else if(currMenu == "menu2") 
		{ 
			eval(document.all.menu1.style).display = "none" 
			eval(document.all.menu2.style).display = "block"
			eval(document.all.menu3.style).display = "none" 
			eval(document.all.menu4.style).display = "none" 
		} 
	else if(currMenu == "menu3") 
		{ 
			eval(document.all.menu1.style).display = "none" 
			eval(document.all.menu2.style).display = "none"
			eval(document.all.menu3.style).display = "block" 
			eval(document.all.menu4.style).display = "none" 
		} 
	else 
		{ 
			eval(document.all.menu1.style).display = "none" 
			eval(document.all.menu2.style).display = "none" 
			eval(document.all.menu3.style).display = "none" 
			eval(document.all.menu4.style).display = "block" 
		}

	return false 
		} 
	else 
		{ 
	return true 
		} 
}