var scroll=0;
var scrollValue = 0;
var scrollrodzaj=1;
var gal=document.getElementById("galeria");

function scrolldown(i){
	scroll=1;
	scrollrodzaj=i;	
}
function scrollout(){
	scroll=0;	
}
function startscroll(){
	gal=document.getElementById("galeria");
	var dcx=window.setInterval("step()",50); 
	gal.scrollTop = 0;
	scrollValue = 0;
}
function step(){
	if (scroll==1){
	    scrollValue += scrollrodzaj;
	    if (scrollValue < 0) scrollValue = 0;
	    gal.style.marginTop = -scrollValue*20 + "px"	
	    
	}
	
	
}
function Taba(i,prefix){
	if (!prefix)prefix="";
	var x=document.getElementById(prefix+"tab"+String(i));
	if (x.style.display!="block"){x.style.display="block"} else {x.style.display="none"};
}
function Show(i,prefix){
	if (!prefix)prefix="";
	var x=document.getElementById(prefix+"tab"+String(i));
	if (x.style.display!="block"){x.style.display="block"};
}
function Hide(i,prefix){
	if (!prefix)prefix="";
	var x=document.getElementById(prefix+"tab"+String(i));
	if (x.style.display=="block"){x.style.display="none"};
}
function Pokaz(o){
	var x=document.getElementById(o);
	if (x.style.display!="block"){x.style.display="block"} else {x.style.display="none"};
}
function Big(i){
	window.open("virgobig.ashx?"+String(i));

}
function OpenMap(i){
	var de=window.open("mapa.aspx?id="+i,"","width=600,height=400")
}

function ShowPrint(i){
	var w=window.open("wydruk.aspx?id="+i,"","width=700,scrollbars=yes,resizable=yes,menubar=yes ");
}

function selectMenu() {
    var op = document.getElementById("oferta_przedmiot").value;
    
    if (op == "") op = "999";
    
    var menu_tds = document.getElementById("tabela_menu").getElementsByTagName("tr")[0].getElementsByTagName("td");

    for (var i = 0; i<menu_tds.length; i++) {
        if (menu_tds[i].innerHTML.indexOf("p=" + op) != -1) {
            menu_tds[i].className="menu_over";
        }
    }
    
}