function open_or_close_el(id){
	var el = document.getElementById("id"+id);
	var img = document.getElementById("img"+id);
	var c = getCookie("treeCatalog");
	
	if (el.style.display=='none') {
		setCookie("treeCatalog", c+=("&"+id+"&"));
		el.style.display = "block";
		//if (img) img.style.display = "none";
	}
	else {
		setCookie("treeCatalog", c.replace("&"+id+"&",""));
		el.style.display = "none";
		//if (img) img.style.display = "";
	}
}

function exchange_imgs(id,img_src1,img_src2){
	var el = document.getElementById(id);
	var st = new String(el.src);
	if (st.indexOf(img_src1)<0) el.src = img_src1;
	else el.src = img_src2;
}

function change_availability_checkbox(){
    var box = jQuery("#availability_checkbox");
    var list = jQuery("tr.noavailable");
    var c = getCookie("onlyavailable");
    if (box.attr("checked")) {
        list.hide();
        setCookie("onlyavailable", "true", "", "/");
    } else {
        list.show();
        setCookie("onlyavailable", "false", "", "/");
    }
}

jQuery(document).ready(function(){
    var box = jQuery("#availability_checkbox");
    box.change(change_availability_checkbox);
    var c = getCookie("onlyavailable");
    box.attr("checked",(c=="true"));
    change_availability_checkbox();
});