function getObj(name) {
  if (document.getElementById) {
	  this.obj = document.getElementById(name);
	  this.style = document.getElementById(name).style;
  }
  else if (document.all) {
	this.obj = document.all[name];
	this.style = document.all[name].style;
  }
  else if (document.layers) {
   this.obj = document.layers[name];
   this.style = document.layers[name];
  }
}


var menu;
var theTop = 297;
var old = theTop;

function init() {
	menu = new getObj('x');
	movemenu();
}

function movemenu() {
	if (window.innerHeight) {
		pos = window.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop) {
		pos = document.documentElement.scrollTop;
	}
	else if (document.body) {
		pos = document.body.scrollTop;
	}
//	alert ('pos : ' + pos + ', theTop : ' + theTop);
	if (pos != theTop) {
//		pos = theTop;
	}
	/*
	else {
		pos += 30;
	}
	*/
//	if (pos != old) {
//		alert ('menu top : ' + menu.style.top);
	if (pos > 297) {
		menu.style.top = pos;
	}
	else {
		menu.style.top = 297;
	}
//	}
	old = pos;
	temp = setTimeout('movemenu()',2000);
}