function getWindowHeight() 
{
	var windowHeight=0;
	if (typeof(window.innerHeight)=='number') 
	{
		windowHeight = window.innerHeight;
	}
	else 
	{
		if (document.documentElement &&	document.documentElement.clientHeight) 
		{
			windowHeight = document.documentElement.clientHeight;
		}
		else 
		{
			if (document.body&&document.body.clientHeight) 
			{
				windowHeight=document.body.clientHeight;
			}
		}
	}
	return windowHeight;
}


function preloadImage(src)
{
	image = new Image();
	image.src = src;
}


function statystyki(id)
{
    gemius_hit_int(id,0,0);
}


function isSilverlightInstalled()
{

    var isSilverlightInstalled = false;
   
    try
    {
        //check on IE
        try
        {
            var slControl = new ActiveXObject('AgControl.AgControl');
            isSilverlightInstalled = true;
        }
        catch (e)
        {
            //either not installed or not IE. Check Firefox
            if ( navigator.plugins["Silverlight Plug-In"] )
            {
                isSilverlightInstalled = true;
            }
        }
    }
    catch (e)
    {
        //we don't want to leak exceptions. However, you may want
        //to add exception tracking code here.
    }
    return isSilverlightInstalled;
}


function onSilverlightError(sender, args) {

    var appSource = "";
    if (sender != null && sender != 0) {
        appSource = sender.getHost().Source;
    } 
    var errorType = args.ErrorType;
    var iErrorCode = args.ErrorCode;
    
    var errMsg = "Unhandled Error in Silverlight 2 Application " +  appSource + "\n" ;

    errMsg += "Code: "+ iErrorCode + "    \n";
    errMsg += "Category: " + errorType + "       \n";
    errMsg += "Message: " + args.ErrorMessage + "     \n";

    if (errorType == "ParserError")
    {
        errMsg += "File: " + args.xamlFile + "     \n";
        errMsg += "Line: " + args.lineNumber + "     \n";
        errMsg += "Position: " + args.charPosition + "     \n";
    }
    else if (errorType == "RuntimeError")
    {           
        if (args.lineNumber != 0)
        {
            errMsg += "Line: " + args.lineNumber + "     \n";
            errMsg += "Position: " +  args.charPosition + "     \n";
        }
        errMsg += "MethodName: " + args.methodName + "     \n";
    }

    throw new Error(errMsg);
}