function menuEffectOn(id){
	document.getElementById(id).style.background="url(/cweb/images/menu_on_mouseover.jpg)";
	document.getElementById(id).style.backgroundRepeat="repeat-x";
	if(id=='m1'){
		document.getElementById(id).style.marginLeft="1px";
	}
}

function menuEffectOff(id){
	document.getElementById(id).style.background="none";
}