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// --- internal use functions -----------------------------------------------
function getCookie (sName)
{
var aCookie = document.cookie.split ('; ');
for (var i = 0; i < aCookie.length; ++i)
{
var aCrumb = aCookie [i].split ('=');
if (sName == aCrumb [0])
return unescape (aCrumb [1]);
}
return null;
} // getCookie
function setCookie (sName, sValue, iMode)
{
var expDate = new Date ();
if (iMode == 1)
expDate.setDate (expDate.getDate () + 365);
else if (iMode == 2)
expDate.setHours (expDate.getHours () + 12);
document.cookie = sName + '=' + escape (sValue) +
'; expires=' + expDate.toGMTString () + '; path=/';
} // setCookie
function isFeatureSupported (sFeature)
{
return (window.focus) ? // secure (?) check for JS 1.1
// can safely use 'typeof'
eval ('typeof (' + sFeature + ') != "undefined"') :
false; // JS 1.0 supports nothing questionable...
} // isFeatureSupported
function setFontSizeGrade (vValue)
{
if (vValue == null)
return;
document.body.style.fontSize = '' + (100 * Math.pow (1.2, vValue)) + '%';
setCookie ('FontSizeGrade0', vFontSizeGrade, 1);
} // setFontSizeGrade
function isPlatformOk4PageControls ()
{
return isFeatureSupported ('document.body.style.fontSize') &&
isFeatureSupported ('document.getElementById');
} // isPlatformOk4PageControls
function propertiesChunk (sName, sValue)
{
return '&' + sName + '=' + escape (sValue);
} // propertiesChunk
function reportBrowserProperties ()
{
if (getCookie ('BrowserProperties'))
if ((vFontSizeGrade == null) ||
(vFontSizeGrade == getCookie ('FontSizeGrade1')))
return; // avoid repeated reporting
document.cookie = 'BrowserProperties=T; path=/';
var sProperties = 'c=' + ((document.cookie) ? 'Y' : 'N');
sProperties +=
propertiesChunk ('tz', (new Date ()).getTimezoneOffset () / 60 * (-1));
if ((navigator.appVersion.indexOf ('MSIE 5') >= 0 ||
navigator.appVersion.indexOf ('MSIE 6') >= 0 ||
navigator.appVersion.indexOf ('MSIE 7') >= 0) &&
(navigator.userAgent.indexOf ('Opera') < 0))
{
document.write ('<span style="behavior: url(#default#clientCaps)"' +
' id="client-caps"></span>');
var oClientCaps = document.all.item ("client-caps");
var sFlashVersion =
oClientCaps.getComponentVersion
('{D27CDB6E-AE6D-11CF-96B8-444553540000}', 'ComponentID');
sProperties += propertiesChunk ('flash', sFlashVersion);
sProperties += propertiesChunk ('conn', oClientCaps.connectionType);
}
if (isFeatureSupported ('navigator.javaEnabled'))
sProperties +=
propertiesChunk ('java', (navigator.javaEnabled () ? 'Y' : 'N'));
if (isFeatureSupported ('screen.width'))
sProperties += propertiesChunk ('sw', screen.width);
if (isFeatureSupported ('screen.height'))
sProperties += propertiesChunk ('sh', screen.height);
if (isFeatureSupported ('screen.colorDepth'))
sProperties += propertiesChunk ('cld', screen.colorDepth);
if (isFeatureSupported ('screen.pixelDepth'))
sProperties += propertiesChunk ('pxd', screen.pixelDepth);
if (isFeatureSupported ('screen.deviceXDPI'))
{
sProperties += propertiesChunk ('dxdpi', screen.deviceXDPI);
sProperties += propertiesChunk ('dydpi', screen.deviceYDPI);
}
if (isFeatureSupported ('screen.logicalXDPI'))
{
sProperties += propertiesChunk ('lxdpi', screen.logicalXDPI);
sProperties += propertiesChunk ('lydpi', screen.logicalYDPI);
}
// see http://www.howtocreate.co.uk/tutorials/index.php?tut=0&part=16
if (isFeatureSupported ('window.innerWidth'))
{
sProperties += propertiesChunk ('wiw', window.innerWidth);
sProperties += propertiesChunk ('wih', window.innerHeight);
}
else if (isFeatureSupported ('document.documentElement.clientWidth') &&
(document.documentElement.clientWidth))
{
sProperties +=
propertiesChunk ('wiw', document.documentElement.clientWidth);
sProperties +=
propertiesChunk ('wih', document.documentElement.clientHeight);
}
else if (isFeatureSupported ('document.body.clientWidth') &&
(document.body.clientWidth))
{
sProperties += propertiesChunk ('wiw', document.body.clientWidth);
sProperties += propertiesChunk ('wih', document.body.clientHeight);
}
sProperties += propertiesChunk ('nan', navigator.appName);
sProperties += propertiesChunk ('nacn', navigator.appCodeName);
sProperties += propertiesChunk ('nav', navigator.appVersion);
if (isFeatureSupported ('navigator.cpuClass'))
sProperties += propertiesChunk ('cpu', navigator.cpuClass);
if (isFeatureSupported ('navigator.platform'))
sProperties += propertiesChunk ('plat', navigator.platform);
if (isFeatureSupported ('navigator.systemLanguage'))
sProperties += propertiesChunk ('slang', navigator.systemLanguage);
if (isFeatureSupported ('navigator.userLanguage'))
sProperties += propertiesChunk ('ulang', navigator.userLanguage);
if (vFontSizeGrade != null)
{
sProperties += propertiesChunk ('fsg', vFontSizeGrade);
setCookie ('FontSizeGrade1', vFontSizeGrade, 1);
}
document.write ('<img src="/img/transparent1x1.gif?' + sProperties +
'" width="1" height="1">');
setCookie ('BrowserProperties', 'R', 2);
} // reportBrowserProperties
// --- external use functions -----------------------------------------------
function setupFontSize ()
{
if (isPlatformOk4PageControls ())
{
vFontSizeGrade = getCookie ('FontSizeGrade0');
if (vFontSizeGrade != null)
setFontSizeGrade (vFontSizeGrade);
}
reportBrowserProperties (); // a good place to do it...
} // setupFontSize
function showPageControls (sSpecificControlsCode, sRootPfx)
{
if (!isPlatformOk4PageControls ())
return;
var sControlsCode =
(sSpecificControlsCode != null) ?
sSpecificControlsCode :
'<img src="' + sRootPfx + 'img/zoom-in.gif" width="16" ' +
'height="16" alt="Óâåëè÷èòü ðàçìåð øðèôòà" ' +
'title="Óâåëè÷èòü ðàçìåð øðèôòà" ' +
'onclick="increaseFontSize ();"> <img src="' + sRootPfx +
'img/zoom-out.gif" width="16" height="16" ' +
'alt="Óìåíüøèòü ðàçìåð øðèôòà" title="Óìåíüøèòü ðàçìåð øðèôòà" ' +
'onclick="decreaseFontSize ();"> <a href="' + sRootPfx +
'ru/help.html" title="Ïîäñêàçêà"><img src="' + sRootPfx +
'img/help.gif" width="16" height="16" alt="Ïîäñêàçêà"></a>';
document.write ('<div id="page-controls">' + sControlsCode + '</div>');
} // showPageControls
function decreaseFontSize (sName, sValue)
{
setFontSizeGrade (--vFontSizeGrade);
} // decreaseFontSize
function increaseFontSize (sName, sValue)
{
setFontSizeGrade (++vFontSizeGrade);
} // increaseFontSize
function highlightAnchorRaw ()
{
if (!(document.getElementById))
return; // won't mess with ancient browsers...
var hash = window.location.hash;
if (hash.length <= 1)
return;
var targetName = hash.substring (1);
var targetAnchor = document.getElementById (targetName);
if (!targetAnchor)
return; // might be a hand-crafted URL...
var targetTr = targetAnchor.parentNode.parentNode;
targetTr.style.backgroundColor = '#FFFF00';
} // onPageLoad
// --- global variables -----------------------------------------------------
var vFontSizeGrade = null; | |
