var e_interval;
var e_gal_left;
var e_gal_right;

function e_gal_moveright()
{
    clearInterval(e_interval);
    e_interval = setInterval("e_move(3)", 10);
}

function e_gal_moveleft()
{
    clearInterval(e_interval);
    e_interval = setInterval("e_move(-3)", 10);
}

function e_move(amt)
{
    $("#wrapper:not(:animated)").animate({ scrollLeft: '+=' + amt}, 10);
}

function e_stop()
{
    clearInterval(e_interval);
}

$(document).ready(function() {

    e_gal_left = document.getElementById("left-btn");
    e_gal_right = document.getElementById("right-btn");

    e_gal_left.onmousedown = e_gal_moveleft;
    e_gal_left.onmouseup = e_stop;
    e_gal_left.onmouseout = e_stop;

    e_gal_right.onmousedown = e_gal_moveright;
    e_gal_right.onmouseup = e_stop;
    e_gal_right.onmouseout = e_stop;
});