function menuMO(main_img,main_img_src,sub_div, action){
	var elm = getElem(main_img);
	elm.src = main_img_src;
	if (sub_div != "" && action == "hide"){
		hideid(sub_div);
	} else if (sub_div != "" && action == "show"){
		showid(sub_div);
	}	
}
function getElem(id){
	var elem;
	if( document.getElementById ){
		elem = document.getElementById(id);
	}else if( document.all ){
		elem = document.all[id];
	}else if( document.layers ){
		elem = document.layers[id];
	}
	return elem
}
function showid(id) {
	var elem = getElem(id);
	elem.style.display='block';
}
function hideid(id) {
	var elem = getElem(id);
	elem.style.display='none';
}

function checkform(){
  if (document.paypalform.confirm.checked == false){
    alert("You must read and agree to the terms of service before continuing.")
  return false}
}