Wx = -1;
Wy = -1;
spannam1="span1";

if (document.layers) document.captureEvents(Event.MOUSEMOVE);
document.onmousemove = m_pos;

function m_pos(event0) {
  if (navigator.appName.charAt(0)=="M") {
    Et =event.type;
    Sx =event.screenX;
    Sy =event.screenY;
    Wx = document.body.scrollLeft+event.clientX;
    Wy = document.body.scrollTop+event.clientY;
  }
  if (navigator.appName.charAt(0)=="N") {
    Et =event0.type;
    Sx =event0.screenX;
    Sy =event0.screenY;
    Wx =event0.pageX;
    Wy =event0.pageY;
  }
  txt0="";
  txt0+="マウスの座標";
  txt0+=" : X = "+Wx;
  txt0+=" : Y = "+Wy;
  if (navigator.appName.charAt(0)=="M") {
    document.all[spannam1].style.visibility = 'visible';
    document.all[spannam1].innerText = txt0;
    document.all[spannam1].style.left = Wx+8;
    document.all[spannam1].style.top = Wy+16;
  }
  if (navigator.appName.charAt(0)=="N") {
    document.layers[spannam1].document.open("text/html");
    document.layers[spannam1].document.write(txt0.bold());
    document.layers[spannam1].document.close();
    document.layers[spannam1].document.fgColor = "red";
    document.layers[spannam1].document.bgColor = "yellow";
  }

  document.form1.xbox.value = Wx;
  document.form1.ybox.value = Wy;
}