var is_menu=false;
var cur_menu='menu_price';

function load_logo(id, base, fn)
	{
	if (!base) {var base='';}
	if (!fn)
		{
		var logos=new Array(18);
		//logos[0]='logo_orange.png';
		logos[0]='logo_yellow.png';
		logos[1]='logo_dblue.png';
		logos[2]='logo_cyan.png';
		logos[3]='logo_green.png';
		logos[4]='logo_lime.png';
		logos[5]='logo_blue.png';
		logos[6]='logo_red.png';
		logos[7]='logo_pink.png';
		logos[8]='logo_white.png';
		logos[9]='logo_bk_yellow.png';
		logos[10]='logo_bk_dblue.png';
		logos[11]='logo_bk_cyan.png';
		logos[12]='logo_bk_green.png';
		logos[13]='logo_bk_lime.png';
		logos[14]='logo_bk_blue.png';
		logos[15]='logo_bk_red.png';
		logos[16]='logo_bk_pink.png';
		logos[17]='logo_bk_white.png';
		var x=Math.floor( Math.random( ) * 18);
		if (document.getElementById(id))
			{document.getElementById(id).src=base + logos[x];}
		}
		else
	    {
		if (document.getElementById(id))
		  {document.getElementById(id).src=base + fn;}
		}
	}

function showMenu(id)
	{
	if (is_menu) {hideAllMenu();}
	document.getElementById(id).style.visibility='visible';
	document.getElementById(id).style.display='block';
	is_menu=true;
	cur_menu=id;
	}

function menu_mousemove(){
	if (!is_menu) {return;};
	x = (document.layers) ? e.pageX : document.body.scrollLeft+event.clientX;
	y = (document.layers) ? e.pageY : document.body.scrollTop+event.clientY;
	//document.getElementById('coords').innerHTML=cur_menu + ': ' + 'x='+x+', y='+y + ' (maxy=' + maxy + ')';
	if ((y < 70) | (y > 230) | (x < 200) | (x > 830))
		{hideAllMenu();}
	}

function hideMenu(id)
	{
	is_menu=false;
	if (document.getElementById(id))
	  {document.getElementById(id).style.visibility='hidden';
	  document.getElementById(id).style.display='none';}
	    else
		{if (document.getElementById(cur_menu))
		  {document.getElementById(cur_menu).style.visibility='hidden';
		  document.getElementById(cur_menu).style.display='none';}
		  }
	}

function hideAllMenu()
	{
	if (!is_menu) {return;};
	document.getElementById('menu_description').style.display='none';
	document.getElementById('menu_price').style.display='none';
	document.getElementById('menu_partners').style.display='none';
	document.getElementById('menu_delivery').style.display='none';
	document.getElementById('menu_about').style.display='none';
	document.getElementById('menu_description').style.visibility='hidden';
	document.getElementById('menu_price').style.visibility='hidden';
	document.getElementById('menu_partners').style.visibility='hidden';
	document.getElementById('menu_delivery').style.visibility='hidden';
	document.getElementById('menu_about').style.visibility='hidden';
	is_menu=false;
	}

function showDelayed(id1, id2, id3, to)
  {
  if (!to) {to=0.4;}
  showBlock(id1, to);
  var func="showBlock('" + id2 + "', " + to + ");";
  setTimeout(func, to*600);
  var func2="showBlock('" + id3 + "', " + to + ");";
  setTimeout(func2, 2*to*600);
  }

function ya_rollover(id) 
  { 
  var imgElem=document.getElementById(id); 
  imgElem.className = 'ya_button_over';
  } 

function ya_rollout(id) 
  { 
  var imgElem=document.getElementById(id); 
  imgElem.className = 'ya_button';
  }
  
function switchPic(id, newsrc)
  {
  document.getElementById(id).src=newsrc;
  }
  
function hideBlock(id, to)
  {
  if (!to) {to=0.4;}
  new Effect.Fade(id, {duration:to});
  }
 
function showBlock(id, to)
  {
  if (!to) {to=0.4;}
  new Effect.Appear(id, {duration:to});
  }

function swapBlocks(id1, id2, to) 
  {
  if (!to) {to=0.4;}
  hideBlock(id1, to);
  var func="showBlock('" + id2 + "', " + to + ");";
  setTimeout(func, to*1000);
  }