var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;

function animate()
{
var elem = document.getElementById('progress');
if(elem != null) {
if (pos==0) len += dir;
if (len>32 || pos>296) pos += dir;
if (pos>296) len -= dir;
if (pos>296 && len==0) pos=0;
elem.style.left = pos;
elem.style.width = len;
}
}

function remove_loading() {
this.clearInterval(t_id);
var targelem = document.getElementById('loader_container');
targelem.style.display='none';
targelem.style.visibility='hidden';
pos=0;
dir=2;
len=0;
this.t_id = setInterval(animate,40);
//document.location="#odsylacz_cennik";
}


function loading(top) {
this.clearInterval(t_id);
pos=0;
dir=2;
len=0;
this.t_id = setInterval(animate,20);
var targelem = document.getElementById('loader_container');

targelem.style.display='block';
targelem.style.visibility='visible';
		 targelem.style.top=top;
		 targelem.style.left=526;
}



// wersja na srodek strony
/*
function loading(top) {
this.clearInterval(t_id);
pos=0;
dir=2;
len=0;
this.t_id = setInterval(animate,20);
var targelem = document.getElementById('loader_container');

targelem.style.display='block';
targelem.style.visibility='visible';
 			gora = document.body.scrollTop +(screen.availHeight/2)-100;
			lewo = (screen.availWidth/2)-115;
		 targelem.style.top=gora;
		 targelem.style.left=lewo;
}*/

//}