function mcsere (x)
{
	document.images['menu'+x].src='graf/menu'+x+'_on.gif';
}
function mbere (x)
{
	document.images['menu'+x].src='graf/menu'+x+'.gif';
}
function csere (im,kit)
{
	document.images[im].src='graf/'+im+'_on.'+kit;
}
function bere (im,kit)
{
	document.images[im].src='graf/'+im+'.'+kit;
}
function tcsere (x)
{
	document.images['termek'+x].src='gomb/'+gombon[x];
}
function tbere (x)
{
	document.images['termek'+x].src='gomb/'+gomb[x];
}
function popup(oldal)
{
	OpenWin = this.open(oldal, "CtrlWindow", "width=550,height=650,toolbar=no,menubar=no,location=no,scrollbars=no,resizable=no");
}
function popup2(oldal)
{
	OpenWin = this.open(oldal, "CtrlWindow", "width=620,height=620,toolbar=no,menubar=no,location=no,scrollbars=no,resizable=no");
}
function popup3(oldal)
{
	OpenWin = this.open(oldal, "CtrlWindow", "width=550,height=550,toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=no");
}
function showker ()
{
	obj1 =document.getElementById('tart');
	obj1.style.display="block";
	obj2 =document.getElementById('becsuk');
	obj2.style.display="block";
}
function hideker ()
{
	obj1 =document.getElementById('tart');
	obj1.style.display="none";
	obj2 =document.getElementById('becsuk');
	obj2.style.display="none";
}
function showker2 ()
{
	obj1 =document.getElementById('keru');
	obj2 =document.getElementById('var');
	obj1.style.display="block";
	obj2.style.display="none";
}
function hideker2 ()
{
	obj2 =document.getElementById('keru');
	obj1 =document.getElementById('var');
	obj1.style.display="block";
	obj2.style.display="none";
}