function okno(cesta,popis,x,y) 
{
 wnd = window.open(cesta,popis,'titlebar=no,toolbar=no,status=no,location=no,menubar=yes,resizable=yes,scrollbars=yes,width='+x+',height='+y);wnd.moveTo((screen.width-x)/2, (screen.height-y)/3);
}

function insert_smile(smile)
{
 document.getElementById('textarea_vzkaz').focus();
 document.getElementById('textarea_vzkaz').value=document.getElementById('textarea_vzkaz').value+smile;
}