function initsel(i, filename)
{
 nbutton[i]=new Image();
 nbutton[i].src='ge/usr/img/menu/'+filename+'.n.gif';
 sbutton[i]=new Image();
 sbutton[i].src='ge/usr/img/menu/'+filename+'.s.gif';
};

function initsell(i, filename)
{
 nlogo[i]=new Image();
 nlogo[i].src='ge/usr/img/logos/'+filename+'.bw.gif';
 slogo[i]=new Image();
 slogo[i].src='ge/usr/img/logos/'+filename+'.color.gif';
};

function sel(i)
{
 document['b'+i].src=sbutton[i].src;
};

function desel(i)
{
 document['b'+i].src=nbutton[i].src;
};

function sell(i)
{
 document['l'+i].src=slogo[i].src;
};

function desell(i)
{
 document['l'+i].src=nlogo[i].src;
};

function incr(obj)
{
 lastIncrWidth=obj.width;
 lastIncrHeight=obj.height;
 lastIncrClassName=obj.className;

 obj.width+=10;
 obj.height+=10;
 obj.className=obj.className.replace('bor', '');
};

function decr(obj)
{
 obj.width=lastIncrWidth;
 obj.height=lastIncrHeight;
 obj.className=lastIncrClassName;
};

function darkbg(obj)
{
 lastDarkBgClassName=obj.className;

 obj.className=obj.className.replace('lgr', 'dgr');
};

function lightbg(obj)
{
 obj.className=lastDarkBgClassName;
};

nbutton=new Array();
sbutton=new Array();

nlogo=new Array();
slogo=new Array();