var no_update_galery = false;
var galery_width = false;
var galleryOnLoad = false;

//onLoad observer
var onLoadHandlers = new Array();

function addOnLoadHandler(handler) {
	onLoadHandlers.push(handler);
}

var curSlidePage = 0;

function slide_next(toNext) {
	curSlidePage += toNext;
	if(curSlidePage < 0)
		curSlidePage = 0;

	var req = new JsHttpRequest();
	req.onreadystatechange = function() {
	  if (req.readyState == 4) {
		 $('slideshow_list_id').innerHTML=req.responseText;
	  }
	}
	req.loader = "form";
	req.open('GET', 'get_slide_list.php', true);
	req.send( { id: 1, page: curSlidePage, slide_per_page: slideListCount} );
}

window.onload = function() {
	var i;
	var count = onLoadHandlers.length;
	for(i=0; i<count; i++) {
		onLoadHandlers[i].call();
	}
}