// -----------------------------------------------------------------------------------
//
//  Lightbox v2.04
//  by Lokesh Dhakar - http://www.lokeshdhakar.com
//  Last Modification: 2/9/08
//
//  For more information, visit:
//  http://lokeshdhakar.com/projects/lightbox2/
//
//  Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//      - Free for use in both personal and commercial projects
//      - Attribution requires leaving author name, author link, and the license info intact.
//  
//  Thanks: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), and Thomas Fuchs(mir.aculo.us) for ideas, libs, and snippets.
//          Artemy Tregubenko (arty.name) for cleanup and help in updating to latest ver of proto-aculous.
//
// -----------------------------------------------------------------------------------

    //
    //  getPageSize()
    //
    function getPageSize() {
            
         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;
        }

        return [pageWidth,pageHeight];

    }