function LeftMenu_roll(id) {
	
	if ($('#'+id).css('display') == 'none') { $('#'+id).slideDown('slow', function() {}); } 
	else { $('#'+id).slideUp('slow', function() {}); }
	
}


//**********************************************************************************
// podswietlenie przycisku
//**********************************************************************************


function button_change(id)
{
	var button = document.getElementById(id);
	var src = button.src;
	
	var temp = src.split("/");
	var oldfile = temp[temp.length-1];
	
	oldfile = oldfile.replace('.jpg','');
	
	if (oldfile.indexOf('_hover') < 0) { newfile = oldfile.concat('_hover'); }
	else { newfile = oldfile.replace('_hover',''); }	
	button.src = button.src.replace(oldfile,newfile)
}




function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}


function makeHover(elem) {
	if (elem.className.indexOf('_hover') < 0) { elem.className = elem.className.concat('_hover'); }
	else { elem.className = elem.className.replace('_hover',''); }	
}


//**********************************************************************************
// podswietlenia flag jezykow
//**********************************************************************************

function flag_hover(id,mode)
{
	var obj = document.getElementById(id);
	if (mode) { obj.style.background = "url('pics/menuitem_hover.jpg')"; }
	else { obj.style.background = "url('pics/menuitem.jpg')"; }
}


//**********************************************************************************
// tworzenie obiektu XMLHttpRequest
//**********************************************************************************

function GetXmlHttpObject()
{
	if (window.XMLHttpRequest) { return new XMLHttpRequest(); }
	if (window.ActiveXObject) { return new ActiveXObject("Microsoft.XMLHTTP"); }
	alert('Przeglądarka nie obsługuje obiektów XMLHTTP');
	return null;
}