/**********************************************************************************   
Galerie Meny
*********************************************************************************/

function lib_bwcheck(){ //Browsercheck (needed)
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=this.agent.indexOf("Opera 5")>-1
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this
}
var bw=new lib_bwcheck()


/*****************

You set the width and height of the divs inside the style tag, you only have to
change the divCont, Remeber to set the clip the same as the width and height.
You can remove the divUp and divDown layers if you want. 
This script should also work if you make the divCont position:relative.
Then you should be able to place this inside a table or something. Just remember
that Netscape crash very easily with relative positioned divs and tables.

Updated with a fix for error if moving over layer before pageload.

****************/


//If you want it to move faster you can set this lower:
var speed=50

//Sets variables to keep track of what's happening
var loop, timer

//Object constructor
function makeObj(obj,nest){
    nest=(!nest) ? "":'document.'+nest+'.'
	this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0;
  	this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0;
	
	this.scrollHeight=bw.ns4?this.css.document.height:this.el.offsetHeight;
	this.clipHeight=bw.ns4?this.css.clip.height:this.el.offsetHeight;

	this.scrollWidth=bw.ns4?this.css.document.width:this.el.offsetWidth;
	this.clipWidth=bw.ns4?this.css.clip.width:this.el.offsetWidth;

	
	this.up=goUp;this.down=goDown;
	this.left=goLeft;this.right=goRight;
	this.moveIt=moveIt; this.x; this.y;
    this.obj = obj + "Object"
    eval(this.obj + "=this")
    return this
}

function moveIt(x,y){
	this.x=x;this.y=y
	this.css.left=this.x
	this.css.top=this.y
}

//Makes the object go up
function goDown(move){
	if(this.y>-this.scrollHeight+oCont.clipHeight){
		this.moveIt(0,this.y-move)
			if(loop) setTimeout(this.obj+".down("+move+")",speed)
	}
}
//Makes the object go down
function goUp(move){
	if(this.y<0){
		this.moveIt(0,this.y-move)
			if(loop) setTimeout(this.obj+".up("+move+")",speed)
	}
}





//Makes the object go Left
function goLeft(move){
	if(this.x>-this.scrollWidth+oCont.clipWidth){
		this.moveIt(this.x-move,0)
			if(loop) setTimeout(this.obj+".left("+move+")",speed)
	}
}
//Makes the object go Right
function goRight(move){
	if(this.x<0){
		this.moveIt(this.x-move,0)
			if(loop) setTimeout(this.obj+".right("+move+")",speed)
	}
}






//Calls the scrolling functions. Also checks whether the page is loaded or not.
function scroll(speed){
	if(loaded){
		loop=true;
		if(speed>0) oScroll.left(speed)
		else oScroll.right(speed)
	}
}
function scrollV(speed){
	if(loaded){
		loop=true;
		if(speed>0) oScroll.down(speed)
		else oScroll.up(speed)
	}
}

//Stops the scrolling (called on mouseout)
function noScroll(){
	loop=false
	if(timer) clearTimeout(timer)
}
//Makes the object
var loaded;
function scrollInit(){
	oCont=new makeObj('divCont')
	oScroll=new makeObj('divText','divCont')
	oScroll.moveIt(0,0)
	oCont.css.visibility='visible'
	loaded=true;
}
//Call the init on page load
//onload=scrollInit;



// 
function ActivniVolba(clPasive, clActive, d, activ){
	// zatim neni OK
	var i,ob,tA,h=document.location.href;
	//alert(document.location.href);
	
	if(document.getElementById){
	ob=(d)?document.getElementById(d):document;
	
	if(ob){
		tA=ob.getElementsByTagName('a');
		//alert(tA.length);
		for(i=0;i<tA.length;i++){
			tA[i].className=clPasive;
			//alert(tA[i].className);
			}
	}
	activ.className=clActive;
}}