function TextScroll(scrollname, div_name, up_name, down_name)
{
this.div_name = div_name;
this.name = scrollname;
this.scrollCursor = 0;
this.speed = 5;
this.timeoutID = 0;
this.div_obj = null;
this.up_name = up_name;
this.dn_name = down_name;
{
if (document.getElementById) {
div_obj = document.getElementById(this.div_name);
if (div_obj) {
this.div_obj = div_obj;
this.div_obj.style.overflow = 'hidden';
}
div_up_obj = document.getElementById(this.up_name);
div_dn_obj = document.getElementById(this.dn_name);
if (div_up_obj && div_dn_obj) {
div_up_obj.onmouseover = function() { eval(scrollname + '.scrollUp();') };
div_up_obj.onmouseout = function() { eval(scrollname + '.stopScroll();') };
div_dn_obj.onmouseover = function() { eval(scrollname + '.scrollDown();') };
div_dn_obj.onmouseout = function() { eval(scrollname + '.stopScroll();') };
}
}
}
this.stopScroll = function() {
clearTimeout(this.timeoutID);
}
this.scrollUp = function() {
if (this.div_obj) {
this.scrollCursor = (this.scrollCursor - this.speed) < 0 ? 0 : this.scrollCursor - this.speed;
	this.div_obj.scrollTop = this.scrollCursor;
	this.timeoutID = setTimeout(this.name + '.scrollUp()', 60);
}
}
this.scrollDown = function() {
if (this.div_obj) {
this.scrollCursor += this.speed;
this.div_obj.scrollTop = this.scrollCursor;
if (this.div_obj.scrollTop == this.scrollCursor) {
this.timeoutID = setTimeout(this.name + '.scrollDown()', 60);
} else {
this.scrollCursor = this.div_obj.scrollTop;
}
}
}
this.resetScroll = function() {
if (this.div_obj) {
this.div_obj.scrollTop = 0;
this.scrollCursor = 0;
}
}
}