function showMap(x, y)
{
   var t = (screen.availHeight-y)/2;
   var l = (screen.availWidth-x)/2;
   window.open(
    "http://www.budapestmap.com/cmap/sfaimv.asp?x_pt=47.5079626749611&y_pt=19.0881426448737&zoom=3&title=PHP%20Konferencia%202005%20-%202005.03.12.%20-%201146%2C%20Budapest%2C%20Ch%E1z%E1r%20A.%20u.%2010.&rdval=3&u=0&d=1&l=0&r=0&pw=W9HSD&sn=Ch%E1z%E1r%20A.%20u.%208-10.&sym=_si&snb=felirat2&symb=_blank&snc=felirat3&symc=_blank&rx=47.5062141035325&ry=19.0893564448737&rxb=&ryb=&rxc=&ryc=",
    "",
    "toolbar=no,status=no,scrollbars=yes,resize=no,menubar=no,width="+x+",height="+y+",left="+l+",top="+t
   );
}