function showSubMenu(el,id){
	if (document.getElementById(id+'Menu').style.display!='block'){
		hideSubMenus();
		el.style.background='url(/images/menu_button_mouseover.jpg)';
		document.getElementById(id+'Menu').style.display='block';
	} else hideSubMenus();
}

function hideSubMenus(){
	document.getElementById('dyscyplinyMenu').style.display='none';
	document.getElementById('ludzieMenu').style.display='none';
	document.getElementById('firmyMenu').style.display='none';
	document.getElementById('miejscaMenu').style.display='none';
	document.getElementById('szkoleniaMenu').style.display='none';

	document.getElementById('dyscypliny').style.background='url(/images/menu_button_mouseout.jpg)';
	document.getElementById('ludzie').style.background='url(/images/menu_button_mouseout.jpg)';
	document.getElementById('firmy').style.background='url(/images/menu_button_mouseout.jpg)';
	document.getElementById('miejsca').style.background='url(/images/menu_button_mouseout.jpg)';
	document.getElementById('szkolenia').style.background='url(/images/menu_button_mouseout.jpg)';
}

function zamknij_duzy(){
    document.getElementById('podklad').style.display='none';
    document.getElementById('glowny').style.display='none';
}
function zamknij_tip(){
//    var x;
//    if (x>0)
	setTimeout('zamknij_duzy()',3000);
//    else
//	setTimeout(zamknij_tip(),3000);
//    x++;
}

function wielki_obraz(x2,y2){
    document.getElementById('podklad').style.display='block';
    document.getElementById('glowny').style.display='block';
//    document.images['duzy_obraz'].src=plik;

    var x,y;
    if (self.pageYOffset) // all except Explorer
    {
	x = self.pageXOffset;
        y = self.pageYOffset;
    }
    else if (document.documentElement && document.documentElement.scrollTop) // Explorer 6 Strict
    {
	x = document.documentElement.scrollLeft;
        y = document.documentElement.scrollTop;
    }
    else if (document.body) // all other Explorers
    {
	x = document.body.scrollLeft;
        y = document.body.scrollTop;
    }

//    var x2, y2;
//    x2=document.images['duzy_obraz'].width;
//    y2=document.images['duzy_obraz'].height;

										
    document.getElementById('podklad').style.left=10+((document.body.scrollWidth-x2)/2)+'px';
    document.getElementById('podklad').style.top=y+240+'px';
    document.getElementById('podklad').style.width=x2+40+'px';
    document.getElementById('podklad').style.height=y2+10+'px';

    document.getElementById('glowny').style.left=((document.body.scrollWidth-x2)/2)+'px';
    document.getElementById('glowny').style.top=y+230+'px';
    document.getElementById('glowny').style.width=x2+40+'px';
    document.getElementById('glowny').style.height=y2+10+'px';
    //alert(document.getElementById('glowny').style.width);    
}