HTML code, PHP code, CSS files, design: Stanislav Vrána
photo at the top of pages: Jaroslav Vrána
text in Czech and English translation: Stanislav Vrána
Spanish translation: Yudisay Del Valle Rodríguez Molina
Tagalog and Cebuano translation: Gina Noronio
Japanese translation: Higashiguchi Tamaki
Slovak translation: Stanislav Vrána
Russian translation: Юлия Симонова
Catalan translation: Darius Ruda
Galician translation: Iago Molist Pérez
Chinese translation: Chen Jing

Other people who helped to make this pages: Irada Alekperova, Вячеслав Чернев, Ерден Карсыбеков, Булатов Мансур

Stranica nije dostupna na vašem jeziku. Gledate verziju strance na engleskom jeziku.


The fonts Georia and Helvetica are the default fonts of these internet pages. The font Georgia is common font in Windows and the font Helvetica is common font in Linux. If none of these fonts is available, internet browser will try to use the font Arial. If the font Arial is not available the internet browser uses generic font sans-serif finally. The use of the font Georgia causes some characters not to be displayed properly while using Internet Explorer. This problem is solved by the use of font Arial as a default font while Internet Explorer is used. The same problem occurs if the internet browser Konqueror uses font Helvetica. So the generic font sans-serif is used as a default font while Konqueror is used.

Validity according to W3C

The validity check of HTML code and CSS have not been done. The W3C validator ( contains an error that allows some pages that are not valid to be marked as valid (more information at, in Czech only). These pages were made in such a way that they have been displayed correctly regardless of validity check results.


There can appear some texts and other objects in the bottom part of this page. These texts and objects cannot be related to the topic of these internet pages because they are used for new feature testing.

Test of browser error message: Click here
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Languages: en-US,en;q=0.5

*All text on these pages with exclusion of text on included pages and and with exclusion of text in the files placed on page 'Download' is available under the conditions of the GNU Free Documentation License.*
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