/* Greybox Redux
 * Required: http://jquery.com/
 * Written by: John Resig
 * Based on code by: 4mir Salihefendic (http://amix.dk)
 * License: LGPL (read more in LGPL.txt)
 */

var GB_DONE = false;
var GB_HEIGHT = 400;
var GB_WIDTH = 400;

function GB_show(caption, url, height, width, kan) {
  GB_HEIGHT = height || 400;
  GB_WIDTH = width || 400;
  if (kan == true) {
      if (!GB_DONE) {
          $(document.body)
              .append("<div id='GB_overlay'></div><div id='GB_window'><div id='GB_caption'></div>"
                + "<img src='javascript/close_kan.gif' alt='Close window'/></div>");
          $("#GB_window img").click(GB_hide);
          $("#GB_overlay").click(GB_hide);
          $(window).resize(GB_position);
          GB_DONE = true;
      }
  } else {
      if (!GB_DONE) {
          $(document.body)
              .append("<div id='GB_overlay'></div><div id='GB_window'><div id='GB_caption'></div>"
                + "<img src='javascript/close.gif' alt='Close window'/></div>");
                  $("#GB_window img").click(GB_hide);
                  $("#GB_overlay").click(GB_hide);
                  $(window).resize(GB_position);
                  GB_DONE = true;
      }
  }

  $("#GB_frame").remove();
  $("#GB_window").append("<iframe id='GB_frame' src='"+url+"'></iframe>");

  $("#GB_caption").html(caption);
  $("#GB_overlay").show();
  GB_position();

  if(GB_ANIMATION)
    $("#GB_window").slideDown("slow");
  else
      $("#GB_window").show();

  centerGreyBox()
}

function GB_hide() {
  $("#GB_window,#GB_overlay").hide();
}

function GB_position() {
  var de = document.documentElement;
  var w = self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
  $("#GB_window").css({width:GB_WIDTH+"px",height:GB_HEIGHT+"px",
    left: ((w - GB_WIDTH)/2)+"px" });
  $("#GB_frame").css("height",GB_HEIGHT - 32 +"px");
}
function centerGreyBox() {
    var gbWindow = document.getElementById("GB_window");
    if (!gbWindow) return;
    var ivHeight = 650; // getHeight(imageViewer);


    var x, y;
    if (self.pageYOffset) // all except Explorer
    {
        x = self.pageXOffset;
        y = self.pageYOffset;
        //self.pageYOffset = y - 100;
    }
    else if (document.documentElement && document.documentElement.scrollTop)
    // Explorer 6 Strict
    {
        x = document.documentElement.scrollLeft;
        y = document.documentElement.scrollTop;
        //document.documentElement.scrollTop= y -100;
    }
    else if (document.body) // all other Explorers
    {
        x = document.body.scrollLeft;
        y = document.body.scrollTop;
        //document.body.scrollTop= y - 100;
    }
    //alert(document.documentElement.scrollTop);
    setY(gbWindow, y+50);
}
function setY(elem, pos) {
    elem.style.top = pos + "px";
}