// define the text of the scroller
var scrtxt = "Welcome to " +
    "the home site for Chuck Thomas. " +
    "You will find reference to professional qualifications, " +
	" experiences, education & publications, teaching, personal " +
	"interests and family.  "
	var length = scrtxt.length;
var width = 100;
var pos = -(width + 2);

function scroll() {
alert(scrtxt);
// display the text at the right 
// position and set a timeout

// move the position one step further
  pos++;

  // calculate the text which shall be displayed
  var scroller = "";
  if (pos == length) {
    pos = -(width + 2);
  }

// if the text hasn't reached 
// the left side yet we have to
// add some spaces - otherwise 
// we have to cut of the first
// part of the text (which moved 
// already across the left border
  if (pos < 0) {
    for (var i = 1; i <= Math.abs(pos); i++) {
      scroller = scroller + " ";}
    scroller = scroller + 
         scrtxt.substring(0, width - i + 1);
  }
  else {
    scroller = scroller + 
         scrtxt.substring(pos, width + pos);
  }

  // assign the text to the statusbar
  window.status = scroller;

  // call this function again 
  // after 100 milliseconds
  setTimeout("scroll()", 100);
}