var craw_line_offset;

function enableCrawLine () {
    craw_line_offset = 0;
	var craw_line_width = document.getElementById('marquee_text').offsetWidth;
    moveCrawLine(craw_line_width);
}

function moveCrawLine (w) {
    var lefttime;
    var container_width = document.getElementById('marquee_container').offsetWidth;

    var step = 1;
    var tdelay = 20;

    w = parseInt(w);
    if (craw_line_offset<(w+container_width)) {
        craw_line_offset = craw_line_offset + step;
    } else {
        craw_line_offset = 0;
    }
    document.getElementById('marquee_text').style.left = parseInt(container_width-craw_line_offset)+'px';

    timeout = setTimeout('moveCrawLine ('+w+');', tdelay);
}
function stoper() {
	clearTimeout(timeout);
}
function starter() {
	var craw_line_width = document.getElementById('marquee_text').offsetWidth;
    moveCrawLine(craw_line_width);
}