function Is() {
    var agent = navigator.userAgent.toLowerCase();
    this.major = parseInt(navigator.appVersion);
    this.minor = parseFloat(navigator.appVersion);
    this.ns  = ((agent.indexOf('mozilla')!=-1) && ((agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1)));
    this.ns2 = (this.ns && (this.major == 2));
    this.ns3 = (this.ns && (this.major == 3));
    this.ns4b = (this.ns && (this.minor < 4.04));
    this.ns4 = (this.ns && (this.major >= 4));
    this.ie   = (agent.indexOf("msie") != -1);
    this.ie3  = (this.ie && (this.major == 2));
    this.ie4  = (this.ie && (this.major >= 4));
    this.op3 = (agent.indexOf("opera") != -1);
    this.win   = (agent.indexOf("win")!=-1);
    this.mac   = (agent.indexOf("mac")!=-1);
    this.unix  = (agent.indexOf("x11")!=-1);
}

var is = new Is();

if(is.ns4) {
  doc = "document";
  sty = "";
  htm = ".document"
} else if(is.ie4) {
  doc = "document.all";
  sty = ".style";
  htm = ""
}

function arrow(menu)
{
    Obj = eval(doc + '["MenuArrow"]' + sty);
    switch(menu)
    {
    	case 1:
	    Obj.top = 192;
	    break;
    	case 2:
	    Obj.top = 229;
	    break;
    	case 3:
	    Obj.top = 265;
	    break;
    	case 4:
	    Obj.top = 299;
	    break;
    	case 5:
	    Obj.top = 335;
	    break;
    	case 6:
	    Obj.top = 369;
	    break;

    }
}

var loop = true;
var direction = "up";
var speed = 20;
var timer1 = null;

function scroll(dir,spd) {
  direction = dir;
  speed = spd;
  if(is.ie)
  {
  	var page = eval(doc + '["MeshList"]' + sty);
  }
  else
  {
  	var page = eval('document.MeshListWindow.document.MeshList');
  }

  var y_pos = parseInt(page.top);
  if(loop == true) {
    if(direction == "dn") {
      page.top = (y_pos-(speed));
    } else if(direction == "up" && y_pos < 10) {
      page.top = (y_pos+(speed));
    } else if(direction == "top") {
      page.top = 10;
    }
    timer1 = setTimeout("scroll(direction,speed)", 2);
  }
}