var clipTop = 0;
var clipWidth = 536;
var clipBottom = 380;
var topper = 0;
var lyrheight = 0;
var time,amount,theTime,theHeight,DHTML;

function InitScroll(){
//utwĂłrz obiekt
Scroll1=new ObScroll('veatures') 
//wrzuc do tablicy "ScrEl" warstwe i elementy sterujace przewijaniem
ScrEl=['veatures','veatures_up','veatures_down','project']
for(var i in ScrEl)getEl(ScrEl[i]).style.visibility='visible'
} 

function init2()
{	
	DHTML = (document.getElementById || document.all || document.layers)
	if (!DHTML) return;
	var x = new getObj('project');
	if (document.layers)
	{
		lyrheight = x.style.clip.bottom;
		lyrheight += 20;
		x.style.clip.top = clipTop;
		x.style.clip.left = 0;
		x.style.clip.right = clipWidth;
		x.style.clip.bottom = clipBottom;
	}
	else if (document.getElementById || document.all)
	{
		lyrheight = x.obj.offsetHeight;
		x.style.clip = 'rect('+clipTop+'px,'+clipWidth+'px,'+clipBottom+'px,0)';
	}
}


function init()
{	
	DHTML = (document.getElementById || document.all || document.layers)
	if (!DHTML) return;
	var x = new getObj('veatures');
	if (document.layers)
	{
		lyrheight = x.style.clip.bottom;
		lyrheight += 20;
		x.style.clip.top = clipTop;
		x.style.clip.left = 0;
		x.style.clip.right = clipWidth;
		x.style.clip.bottom = clipBottom;
	}
	else if (document.getElementById || document.all)
	{
		lyrheight = x.obj.offsetHeight;
		x.style.clip = 'rect('+clipTop+'px,'+clipWidth+'px,'+clipBottom+'px,0)';
	}
}

/*
function init()
{	
	DHTML = (document.getElementById || document.all || document.layers)
	if (!DHTML) return;
	var x = new getObj('veatures');
	if (document.layers)
	{
		lyrheight = x.style.clip.bottom;
		lyrheight += 20;
		x.style.clip.top = clipTop;
		x.style.clip.left = 0;
		x.style.clip.right = clipWidth;
		x.style.clip.bottom = clipBottom;
	}
	else if (document.getElementById || document.all)
	{
		lyrheight = x.obj.offsetHeight;
		x.style.clip = 'rect('+clipTop+'px,'+clipWidth+'px,'+clipBottom+'px,0)';
	}
}
*/
function scrollayer(layername,amt,tim)
{
	if (!DHTML) return;
	thelayer = new getObj(layername);
	if (!thelayer) return;
	amount = amt;
	theTime = tim;
	realscroll();
	//alert ('xxxxxxxxxxxxxxxxxx');
}

function realscroll()
{
	//alert ('yyyyyyyyyyyyyyyyyy');
	if (!DHTML) return;
	clipTop += amount;
	clipBottom += amount;
	topper -= amount;
	if (clipTop < 0 || clipBottom > lyrheight)
	{
		clipTop -= amount;
		clipBottom -= amount;
		topper += amount;
		return;
	}
	if (document.getElementById || document.all)
	{
		clipstring = 'rect('+clipTop+'px,'+clipWidth+'px,'+clipBottom+'px,0)';
		thelayer.style.clip = clipstring;
		thelayer.style.top = topper + 'px';
		//alert ('qqqqqqqqqqq');
	}
	else if (document.layers)
	{
		thelayer.style.clip.top = clipTop;
		thelayer.style.clip.bottom = clipBottom;
		thelayer.style.top = topper;
	}
	time = setTimeout('realscroll()',theTime);
}

function stopScroll()
{
	if (time) clearTimeout(time);
}

function getObj(name)
{
  if (document.getElementById)
  {
  	this.obj = document.getElementById(name);
	this.style = document.getElementById(name).style;
  }
  else if (document.all)
  {
	this.obj = document.all[name];
	this.style = document.all[name].style;
  }
  else if (document.layers)
  {
	this.obj = getObjNN4(document,name);
	this.style = this.obj;
  }
}

function getObjNN4(obj,name)
{
	var x = obj.layers;
	var foundLayer;
	for (var i=0;i<x.length;i++)
	{
		if (x[i].id == name)
		 	foundLayer = x[i];
		else if (x[i].layers.length)
			var tmp = getObjNN4(x[i],name);
		if (tmp) foundLayer = tmp;
	}
	return foundLayer;
}


//ustawienia do jakich elementow ma sie to tyczyc

function menu()
	{
	var element='lvl1';
	
	var menu = document.getElementById(element);
	
	if (!menu) alert('nie ma elementu!')
	
	var li = menu.getElementsByTagName("li");
	
	for(i = 0; i < li.length; i++)
		{
				li[i].onmouseover = function() { this.className+=" hover"; };
				li[i].onmouseout =	function () {this.className=this.className.replace(/hover/, ""); };
		}
	}