function tweNavbarPreload(imgSrc, imgObj) {
	if (document.images) {
		eval(imgObj+' = new Image()');
		eval(imgObj+'.src = "'+imgSrc+'"');
	}
}

function tweNavbarChangeImage(imgName, imgObj) {
	if (document.images) {
		document[imgName].src = eval(imgObj + ".src");        
	}
}  

function CreateRequest() {
    xmlhttp = null;
	if (window.XMLHttpRequest) {
        xmlhttp = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }

	return xmlhttp;
}

function AjaxReplace(req, id, strURL) {
	
	var element = document.getElementById(id); 
	element.innerHTML = '<p><em>Loading ...</em></p>'; 
	req.open("GET", strURL); 
	//alert('trala ' + id);
	
	req.onreadystatechange = function() { 
		if (req.readyState == 4) { 
			element.innerHTML = req.responseText; 
        } 
	} 
    req.send(null); 	
}

function AjaxReplace(req, id, strURL) {
	
	var element = document.getElementById(id); 
	element.innerHTML = '<p><em>czekaj ...</em></p>'; 
	req.open("GET", strURL); 
	
	
	req.onreadystatechange = function() { 
		if (req.readyState == 4) { 
			element.innerHTML = req.responseText; 
            
            if (strURL == "_zamow.html")
            {
                $('#Data').datepicker();
            }
            
        } 
	} 
    req.send(null); 	
}

function ChangeBanner(url) {
	//document.getElementById("banner_ph").src = url;
	var img = document["banner_ph"]
	img.src = url;
}

function LoadPage(title, pageUrl, banerUrl) {
	var lpReq = CreateRequest();
	
	// stronka
	AjaxReplace(lpReq, "strona", pageUrl);
	
	// banerek
	if (banerUrl != undefined && banerUrl != '') {
		document.getElementById("banner_ph").src = banerUrl;
	}

	// tytul
	document.getElementById("stronatytul").innerHTML = title;
}

function LoadMenu() {
	var menuReq = CreateRequest();
    AjaxReplace(menuReq, "lewemenu","lewemenu.html");
}

function LoadStopka() {
	var stopkaReq = CreateRequest();
    AjaxReplace(stopkaReq, "stopka","stopka.html");
}

function querySt(ji) {
	hu = window.location.search.substring(1);
	gy = hu.split("&");
	for (i=0;i<gy.length;i++) {
		ft = gy[i].split("=");
		if (ft[0] == ji) {
			return ft[1];
		}
	}
}

function submitForm()
{
    var form = $('#blaform');
    //form.submit();

    $.ajax({ // create an AJAX call...
        data: $(form).serialize(), // get the form data
        type: $(form).attr('method'), // GET or POST
        url: $(form).attr('action'), // the file to call
        success: function(response) { // on success..
            alert(response);
        }
    });
    
    
    $('#blaform input:text').attr('value', '');
    $('#blaform textarea').attr('value', '');
    $('#blaform select option:first').attr('selected','selected');
    
    //document.blaform.submitbutton.submit();
    
}