var global_obj;
var activ_img;

function load_img(img,obj){
  if (obj == null)
  	obj = global_obj;
  else{
  	global_obj = obj;
    $(document.body).prepend('<div id="page" style="visibility:hidden; position:absolute;">'+obj.innerHTML+'</div>');
  }
  obj.innerHTML = "";
  $(obj).append("<img src='images/loading.gif'>");
	var preloader = new Image();
  var href_mass = new Array();
	preloader.onload = function() {
		preloader.onload = null;
    obj.innerHTML = "";
    $(obj).animate({height: preloader.height+55},1000);
    $(obj).append(preloader);
	$(obj).css("text-align","center");
    // счетчик фотографий на странице
    counter = 0;
    $("div>a[@onclick]").each(
		  function()
  		{
        counter++;
        href_mass[counter] = this.href;
        if (this.href == img)
        	activ_img = counter;
  		}
		);

 //   alert(href_mass[1]);
    if (counter > 1){
    	if (activ_img > 1)
      	$(obj).append("<a onclick='load_img(\""+href_mass[activ_img-1]+"\",null)'><div class='portfolio_btn_prev'>Пред.</div></a>");
    	if (activ_img < counter)
      	$(obj).append("<a onclick='load_img(\""+href_mass[activ_img+1]+"\",null)'><div class='portfolio_btn_next'>След.</div></a>");
    }

	 preloader = null;
	};	preloader.src = img;
}

function load_back (){
	$(global_obj).empty();
//  $(global_obj).animate({height: 0},1000);
	$(global_obj).removeAttr("style");
	$(global_obj).append(document.getElementById("page").innerHTML);
  $("#page").remove();
}