function setMenu() {
  url = "http://ec.emerge-group.com/";
  now = location.href;
  now = now.replace(url,"");
  if(now=="") {
    document.getElementById("M_TOPPAGE").style.backgroundPosition = "0 -76px";
  } else {
    now = now.split("/");
    now = now[0];
    switch(now) {
      case "plan":
        document.getElementById("M_PLAN").style.backgroundPosition = "-153px -76px";
        break;
      case "service":
        document.getElementById("M_SERVICE").style.backgroundPosition = "-306px -76px";
        break;
      case "portfolio":
        document.getElementById("M_RESULT").style.backgroundPosition = "-459px -76px";
        break;
      case "faq":
        document.getElementById("M_FAQ").style.backgroundPosition = "-612px -76px";
        break;
    }
  }
}


/* -------------------------
	Scroll top
------------------------- */
function slowdownScroll() {
		if(navigator.appName == "Microsoft Internet Explorer" && document.compatMode == "CSS1Compat") {
		sctop = document.body.parentNode.scrollTop;
	}

	else if(window.pageYOffset){
		sctop = window.pageYOffset;
		} else {
		sctop = document.body.scrollTop;
	}

	if(sctop){
		scup = Math.ceil(sctop*.2);
		scrollBy(0,-scup);
		if (sctop-scup) setTimeout("slowdownScroll()",15);
	}
}