var galery_imgage = null;
var scroll_e = document.getElementById("js-galery");
function um_changeimg(i)
{
	if ( i.src.indexOf('_a.gif') > 0 )
		{
			i.src = i.src.replace(/_a\.gif/i, '.gif');
		}
	else
		{
			i.src = i.src.replace(/\.gif/i, "_a.gif");
		}
}

function change_anchor(anc)
{

	if ( anc.getElementsByTagName )
	{
		var i = anc.getElementsByTagName("IMG").item(0);
		if ( i ) um_changeimg(i);
	}
}
/*Clemens hat das toll gemacht*/
function click_image(e) {
  document.getElementById( 'big_image' );
	var hint;
	if (hint = document.getElementById("galery_title")) {
		hint.innerHTML = e.title;
	}
	var big_image;
	if (big_image = document.getElementById("big_image")) {
		galery_imgage = new Image;
		galery_imgage.title = e.title;
		galery_imgage.src = document.all ? e.src.replace(/m_/i,"v_") + "?" + Math.ceil(Math.random()*1000000) : e.src.replace(/m_/i,"v_");
		galery_imgage.onload = change_image;
	}
}

function change_image() {

	var big_image;
	if (big_image = document.getElementById("big_image")) {
		big_image.title = galery_imgage.title;
		big_image.src = galery_imgage.src;
	}
}

function scroll_stop(){ window.clearTimeout(scroll_timer); };

function scroll_left(){
	if(scroll_e.scrollLeft > 0) {
		scroll_e.scrollLeft -= scroll_step;
		scroll_timer = setTimeout("scroll_left();", scroll_timer_ms);
	}
}

function scroll_right(){
	if(true) {
		scroll_e.scrollLeft += scroll_step;
		scroll_timer = setTimeout("scroll_right();", scroll_timer_ms);
	}
}