/**
 * Вычисляем размеры окна
 * 
 * @author    Viacheslav Glushko <mail@ixax.ru>
 * @version   1.0.201108.18.1
 */
function getFullPageSize()
{
    var xScroll, yScroll;
    if (window.innerHeight && window.scrollMaxY)
    {   
        xScroll = window.innerWidth + window.scrollMaxX;
        yScroll = window.innerHeight + window.scrollMaxY;
    }
    else if (document.body.scrollHeight > document.body.offsetHeight)
    {   //  All but Explorer MAc
                xScroll = document.body.scrollWidth;
                yScroll = document.body.scrollHeight;
    }
    else 
    {   //  Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
        xScroll = document.body.offsetWidth;
        yScroll = document.body.offsetHeight;
    }

    var windowWidth, windowHeight;
    if (self.innerHeight)
    {   // all except Explorer
        if(document.documentElement.clientWidth)
        {
            
            windowWidth = document.documentElement.clientWidth; 
        }
        else
        {
            windowWidth = self.innerWidth;
        }

        windowHeight = self.innerHeight;
    }
    else if (document.documentElement && document.documentElement.clientHeight)
    { // Explorer 6 Strict Mode
        windowWidth = document.documentElement.clientWidth;
        windowHeight = document.documentElement.clientHeight;
    }
    else if (document.body)
    { // other Explorers
        windowWidth = document.body.clientWidth;
        windowHeight = document.body.clientHeight;
    }

    // for small pages with total height less then height of the viewport
    if(yScroll < windowHeight)
    {
        pageHeight = windowHeight;
    }
    else
    { 
        pageHeight = yScroll;
    }

    // for small pages with total width less then width of the viewport
    if(xScroll < windowWidth)
    {   
        pageWidth = xScroll;        
    }
    else
    {
        pageWidth = windowWidth;
    }

    arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);

    return arrayPageSize;
};