var lft = 0; // (window.screen.width/2);
var pos = 0;   // initial top position
var stp = 10;    // step increment size
var spd = 150;   // speed of increment
var upr = -383;  // upper limiter
var lwr = 0;   // lower limiter
var left = 0;   // left limit
var right = 396;   // left limit
var posn = 0;    // initial left position, which changes
var tim;         // timer variable
var jump = 80;

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 scroll_left() {
if(posn > left) posn -= stp;
do_scroll_horizontal(posn);  
tim = setTimeout("scroll_left()", spd);
}

function scroll_right() {
if(posn < right) posn += stp;
do_scroll_horizontal(posn);
tim = setTimeout("scroll_right()", spd);
}
*/

function jump_left() {
if(posn > left) posn -= jump;
do_scroll_horizontal(posn);  
}

function jump_right() {
if(posn < right) posn += jump;
do_scroll_horizontal(posn);
}

function do_scroll(pos) {
document.getElementById("divTxt").style.marginTop = pos;
}

function do_scroll_horizontal(posn) {
document.getElementById("news_scrollable").style.marginLeft = -posn;
}

function no_scroll() {
clearTimeout(tim);
}