// The Offset Method
// Originally By Brandon Aaron, part of the Dimension Plugin
// http://jquery.com/plugins/project/dimensions
jQuery.fn.offset = function() {
        var left = 0, top = 0, elem = this[0], results;
        
        if ( elem ) with ( jQuery.browser ) {
                var parent       = elem.parentNode, 
                    offsetChild  = elem,
                    offsetParent = elem.offsetParent, 
                    doc          = elem.ownerDocument,
                    safari2      = safari && parseInt(version) < 522,
                    fixed        = jQuery.css(elem, "position") == "fixed";
        
                // Use getBoundingClientRect if available
                if ( elem.getBoundingClientRect ) {
                        var box = elem.getBoundingClientRect();
                
                        // Add the document scroll offsets
                        add(box.left + Math.max(doc.documentElement.scrollLeft, doc.body.scrollLeft),
                                box.top  + Math.max(doc.documentElement.scrollTop,  doc.body.scrollTop));
                
                        // IE adds the HTML element's border, by default it is medium which is 2px
                        // IE 6 and 7 quirks mode the border width is overwritable by the following css html { border: 0; }
                        // IE 7 standards mode, the border is always 2px
                        // This border/offset is typically represented by the clientLeft and clientTop properties
                        // However, in IE6 and 7 quirks mode the clientLeft and clientTop properties are not updated when overwriting it via CSS
                        // Therefore this method will be off by 2px in IE while in quirksmode
                        add( -doc.documentElement.clientLeft, -doc.documentElement.clientTop );
        
                // Otherwise loop through the offsetParents and parentNodes
                } else {
                
                        // Initial element offsets
                        add( elem.offsetLeft, elem.offsetTop );
                        
                        // Get parent offsets
                        while ( offsetParent ) {
                                // Add offsetParent offsets
                                add( offsetParent.offsetLeft, offsetParent.offsetTop );
                        
                                // Mozilla and Safari > 2 does not include the border on offset parents
                                // However Mozilla adds the border for table or table cells
                                if ( mozilla && !/^t(able|d|h)$/i.test(offsetParent.tagName) || safari && !safari2 )
                                        border( offsetParent );
                                        
                                // Add the document scroll offsets if position is fixed on any offsetParent
                                if ( !fixed && jQuery.css(offsetParent, "position") == "fixed" )
                                        fixed = true;
                        
                                // Set offsetChild to previous offsetParent unless it is the body element
                                offsetChild  = /^body$/i.test(offsetParent.tagName) ? offsetChild : offsetParent;
                                // Get next offsetParent
                                offsetParent = offsetParent.offsetParent;
                        }
                
                        // Get parent scroll offsets
                        while ( parent && parent.tagName && !/^body|html$/i.test(parent.tagName) ) {
                                // Remove parent scroll UNLESS that parent is inline or a table to work around Opera inline/table scrollLeft/Top bug
                                if ( !/^inline|table.*$/i.test(jQuery.css(parent, "display")) )
                                        // Subtract parent scroll offsets
                                        add( -parent.scrollLeft, -parent.scrollTop );
                        
                                // Mozilla does not add the border for a parent that has overflow != visible
                                if ( mozilla && jQuery.css(parent, "overflow") != "visible" )
                                        border( parent );
                        
                                // Get next parent
                                parent = parent.parentNode;
                        }
                
                        // Safari <= 2 doubles body offsets with a fixed position element/offsetParent or absolutely positioned offsetChild
                        // Mozilla doubles body offsets with a non-absolutely positioned offsetChild
                        if ( (safari2 && (fixed || jQuery.css(offsetChild, "position") == "absolute")) || 
                                (mozilla && jQuery.css(offsetChild, "position") != "absolute") )
                                        add( -doc.body.offsetLeft, -doc.body.offsetTop );
                        
                        // Add the document scroll offsets if position is fixed
                        if ( fixed )
                                add(Math.max(doc.documentElement.scrollLeft, doc.body.scrollLeft),
                                        Math.max(doc.documentElement.scrollTop,  doc.body.scrollTop));
                }

                // Return an object with top and left properties
                results = { top: top, left: left };
        }

        function border(elem) {
                add( jQuery.curCSS(elem, "borderLeftWidth", true), jQuery.curCSS(elem, "borderTopWidth", true) );
        }

        function add(l, t) {
                left += parseInt(l) || 0;
                top += parseInt(t) || 0;
        }

        return results;
};

function showpict(elem, file, width, height)
{
/*
   var elemitem = $(elem);
   var result = "";
//   var curritem = $("#previewpicture");
   var curritem = elem;
   for (var i in curritem) {
      if (elem[i] != undefined && elem[i]) {
         result += i + " = " + curritem[i] + ", ";
      }
   }
   $('body').append(result);
*/
   if (!$("#previewpicture").parent().is("body")) {
      var pict = $(document.createElement("span"));
      pict.attr({id: "previewpicture"});
      $("body").append(pict);
   }
   $("#previewpicture").append(document.createElement("img"));
   $("#previewpicture > img").attr({src: file, width: width, height: height});
   var docwidth = document.width ? document.width : document.body.scrollWidth;
   var left = Math.min($(elem).offset().left - 5, docwidth - width - 15);
   var top = $(elem).offset().top + elem.offsetHeight + 5;
   $("#previewpicture").css({left: left, top: top});
   $("#previewpicture").show();
}

function hidepict()
{
   $("#previewpicture").hide();
   $("#previewpicture").empty();
}

function onimgclick(file, width, height)
{
   var kfImg = 0;
   if (height > 0) {
     kfImg = width / height;
   }
   var kfScreen = 0;
   if (screen.availHeight > 0) {
     kfScreen = screen.availWidth / screen.availHeight;
   }
   var kfWidth = 0;
   if (screen.availWidth > 0) {
     kfWidth = width / screen.availWidth;
   }
   var kfHeight = 0;
   if (screen.availHeight > 0) {
     kfHeight = height / screen.availHeight;
   }
   var newWidth = width;
   var newHeight = height;
   if (kfWidth > 0.8 || kfHeight > 0.8) {
     if (kfWidth > kfHeight) {
       newWidth = newWidth / kfWidth * 0.8;
       newHeight = newHeight / kfWidth * 0.8;
     }
     else {
       newWidth = newWidth / kfHeight * 0.8;
       newHeight = newHeight / kfHeight * 0.8;
     }
   }
   var newwindow = window.open('', '', 'width=' + newWidth + ', height=' + newHeight + '');
   if (newwindow) {
      newwindow.document.write('<html>');
      newwindow.document.write('<script type="text/javascript">');
      newwindow.document.write('function onimgclick2() { window.close(); }');
      newwindow.document.write('\<\/script>');
      newwindow.document.write('<body style="margin:0px">');
      newwindow.document.write('<img src="' + file + '" ' +
          'width="'+ newWidth + '" ' + 'height = "' + newHeight + '" ' + 'alt="' + file + 
          ', ' + width+'x'+height+'" onclick="onimgclick2()">');
      newwindow.document.write('</body>');
      newwindow.document.write('</html>');
   }
}