function check_menu() {
  lightgallery.init({
	enableZoom:false,
	speed:50,
	fadeImage:true
  });
}

function getElementPosition(elemId)
{
    var elem = document.getElementById(elemId);
    var w = elem.offsetWidth;
    var h = elem.offsetHeight;
    var l = 0;
    var t = 0;
    while (elem)
    {
        l += elem.offsetLeft;
        t += elem.offsetTop;
        elem = elem.offsetParent;
    }
    return {"left":l, "top":t, "width": w, "height":h};
}

function getElementComputedStyle(elem, prop)
{
  if (typeof elem!="object") elem = document.getElementById(elem);
  if (document.defaultView && document.defaultView.getComputedStyle)
  {
    if (prop.match(/[A-Z]/)) prop = prop.replace(/([A-Z])/g, "-$1").toLowerCase();
    return document.defaultView.getComputedStyle(elem, "").getPropertyValue(prop);
  }
  if (elem.currentStyle)
  {
    var i;
    while ((i=prop.indexOf("-"))!=-1) prop = prop.substr(0, i) + prop.substr(i+1,1).toUpperCase() + prop.substr(i+2);
    return elem.currentStyle[prop];
  }
  return "";
}

function SwitchMenu(obj)
{
	elem = document.getElementsByTagName("tr");
	dn=0;
	while (elem.item(dn).id != obj) dn++;
	dn++;
	for(dm=dn;dm < elem.length;dm++)
		if (String(elem.item(dm).className).substring(0,4)=="item")
			{
			st = getElementComputedStyle(elem.item(dm),"display");
			if (st =='none') 
				if ((navigator.appName == "Netscape")||(navigator.appName == "Opera"))
					elem.item(dm).style.display = 'table-row'
				else
					elem.item(dm).style.display = 'block'
			else
				elem.item(dm).style.display = 'none'			
			}
		else
			break;
}

function SwitchOpros(show,hide,forma)
{
			elem = document.getElementsByTagName("tr");
			for(dm=0;dm < elem.length;dm++)
			{
				if ((elem.item(dm).className == show)||(elem.item(dm).className == "t3"))
					if ((navigator.appName == "Netscape")||(navigator.appName == "Opera"))
						elem.item(dm).style.display = 'table-row'
					else
						elem.item(dm).style.display = 'block'
				if (elem.item(dm).className == hide)	
					elem.item(dm).style.display = 'none';
			}
			document.forms.fo.reset();
}

function Switch(obj)
{
	elem = document.getElementsByTagName("div");	
	for(i=0;i<elem.length;i++)
		if (elem.item(i).className == "strana")
			if (elem.item(i).id == obj)
				elem.item(i).style.display = 'block'
			else
				elem.item(i).style.display = 'none';
}

function Menu(naz,sost)
{
	if (sost == "show") {
		pos = getElementPosition("name");
		var left = pos.left + 150;
		document.getElementById(naz).style.left = left + "px";
		document.getElementById(naz).style.top = pos.top + "px";
		document.getElementById(naz).style.display = 'block';
		document.getElementById("but2").className = 'switch_act';
		document.getElementById("but1").className = '';
	}
	if (sost == "hide") {
		document.getElementById(naz).style.display = 'none';
		document.getElementById("but2").className = '';
		document.getElementById("but1").className = 'switch_act';
	}
}

function rotate(show,hide1,hide2) {
	document.getElementById(show).style.display = 'block';
	document.getElementById(hide1).style.display = 'none';
	document.getElementById(hide2).style.display = 'none';
}

function rotate_act(show,hide1,hide2,hide3,hide4) {
	document.getElementById(show).style.display = 'block';
	document.getElementById(hide1).style.display = 'none';
	document.getElementById(hide2).style.display = 'none';
	document.getElementById(hide3).style.display = 'none';
	document.getElementById(hide4).style.display = 'none';
}

function dostavka(obj)
{
		    st = getElementComputedStyle(obj,"display");
			if (st =='none') 
				document.getElementById(obj).style.display = 'block'
			else
				document.getElementById(obj).style.display = 'none';			
}


function diza(obj)
{
            elem = document.getElementsByTagName("select");
			for(dm=0;dm < elem.length;dm++)
				if ((elem.item(dm).className == obj)||(elem.item(dm).className == "brand"))
					elem.item(dm).style.display = 'block';
                else	
					elem.item(dm).style.display = 'none';
}