/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Mr J | http://www.huntingground.net/ */

var scroll_step=4

var timer_scroll;
var current_scroll = -1;
var current_step = "";

function set_scrollbars() {
	var d = document.getElementById('scroller_inner');
	var left_arrow = document.getElementById('mcd_pl_left');
	var right_arrow = document.getElementById('mcd_pl_right');
	
	if (d.scrollLeft != current_scroll) {
		current_scroll = d.scrollLeft;
		left_arrow.src = "/images/arrow-left.gif";
		right_arrow.src = "/images/arrow-right.gif";
		return;
	}
	
	if (d.scrollLeft == 0) {
		left_arrow.src = "/images/arrow-blank.gif";
		stop_scrolling();
	} else {
		right_arrow.src = "/images/arrow-blank.gif";
		stop_scrolling();
	}
}

function continue_scrolling(step) {
	var d = document.getElementById('scroller_inner');
	clearTimeout(timer_scroll) 
	d.scrollLeft+=current_step
	timer_scroll=setTimeout("continue_scrolling()",10)
	set_scrollbars();
}

function scroll_right(){
	current_step = scroll_step;
	continue_scrolling();
}

function scroll_left(){
	current_step = 0 - scroll_step;
	continue_scrolling();
}

function stop_scrolling(){
	clearTimeout(timer_scroll) 
	current_scroll = -1;
}