<!--
var nav = (document.layers) ? true : false;
var iex = (document.all) ? true : false;
var stan = (document.getElementById) ? true : false;


var pos = 50;   // initial top position
var stp = 10;    // step increment size
var spd = 70;   // speed of increment
var upr = -2000;  // upper limiter
var lwr = 50;   // lower limiter
var tim;         // timer variable

function scroll_up() {
	if(pos > upr) pos -= stp;
	do_scroll(pos);  
	tim = setTimeout("scroll_up()", spd);
}

function scroll_dn() {
	if(pos < lwr) pos += stp;
	do_scroll(pos);
	tim = setTimeout("scroll_dn()", spd);
}

function do_scroll(pos) {
	if (iex) {
		document.all.contentText.style.top = pos;
	} else if (nav) {
		document.contentText.top = pos;
	} else if (stan) {
		document.getElementById("contentText").style.top = pos;
	}
}

function no_scroll() {
	clearTimeout(tim);
}

// -->