function expcol(no)
{
	
	for (i=0;i<50;i++)
	{
		if(GetItem('Div'+i.toString()))
			GetItem('Div'+i.toString()).style.display = "none";
		if(GetItem('Holder' + i.toString()))
			GetItem('Holder' + i.toString()).className = "HeadMenuHolder";
	}
	
	GetItem('Div' + no).style.display = "";
	GetItem('Holder' + no).className = "SelHeadMenuHolder";
}


var ImgMenu=new Image();
ImgMenu.src="images/line_menu.gif";

var ImgMenuSel=new Image();
ImgMenuSel.src="images/line_menuSel.gif";

function ChangeMenuPic(nr,bool)
{
	document.images["ImgMenu"+nr].src=(bool?ImgMenuSel.src:ImgMenu.src);
}

var ImgArrow=new Image();
ImgArrow.src="images/arrow.gif";

var ImgArrowSel=new Image();
ImgArrowSel.src="images/arrow_sel.gif";

function ChangeArrow(bool)
{
	document.images["ImgArrow"].src=(bool?ImgArrowSel.src:ImgArrow.src);
}

function DropDown(bool)
{
	//document.all.locationmenu.style.display=(bool?"":"none");
	GetItem("locationmenu").style.display=(bool?"":"none");
	//GetItem("contactmenu").style.display=(bool?"none":"");	
}

function DropDown2(bool)
{
	//document.all.locationmenu.style.display=(bool?"":"none");
	GetItem("contactmenu").style.display=(bool?"":"none");
	//GetItem("locationmenu").style.display=(bool?"none":"");	
}


var isIE=Boolean(document.all && navigator.cpuClass);
var isDOM=Boolean(!isIE && document.getElementById);
var isNN=Boolean(document.layers);

function GetItem(itm)
{
	myObj=new Object();
	if(isIE)
		myObj=document.all[itm];
	else if(isDOM)
		myObj=document.getElementById(itm);
	return myObj;
}

var Step=20;
var MaxVisible=250;
function ScrollDown()
{
	obj=GetItem("scrollText");
	if(obj)
	{
		newPosTop=obj.offsetTop-Step;
		if(newPosTop<-(obj.offsetHeight-MaxVisible))
			newPosTop=-(obj.offsetHeight-MaxVisible);
		//obj.style.top=newPosTop+"px";
		obj.style.marginTop=newPosTop+"px";
	}
}

function ScrollUp()
{
	obj=GetItem("scrollText");
	if(obj)
	{
		newPosTop=obj.offsetTop+Step;
		if(newPosTop>0)
			newPosTop=0;
		//obj.style.top=newPosTop+"px";
		obj.style.marginTop=newPosTop+"px";
	}
}