/* 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) {
  try {
    var browserName=navigator.appName;
    if (browserName != "Microsoft Internet Explorer") {  
      GB_HEIGHT = height || 400;
      GB_WIDTH = width || 400;
    } else {  
      GB_HEIGHT = height || 400;
      GB_WIDTH = width+10 || 400;
    }

  var b = getPageSize();
  var e = getPageScroll();
  var f = e[1] + (b[3] / 10);    
  
  if(!GB_DONE) {  
    $("body")
      .append("<div id='GB_overlay'></div><div id='GB_window'><div id='GB_caption'></div>"
        + "<img src='/bremerhaven-touristik/greybox/close.gif' alt='Close window'/></div>");
    $("#GB_window img").click(GB_hide);
    $("#GB_overlay").click(GB_hide);
    $(window).resize(GB_position);        
    GB_DONE = true;
  }   
  
  document.getElementById('GB_window').style.top = f + "px";
  document.getElementById('GB_overlay').style.height = b[1]; 
  
  $("#GB_frame").remove();
  $("#GB_window").append("<iframe id='GB_frame' frameborder='0' src='"+url+"'></iframe>");

  $("#GB_caption").html(caption);
  $("#GB_overlay").show();
  GB_position();  
  
  if(GB_ANIMATION)
    $("#GB_window").slideDown("slow");
  else
    $("#GB_window").show();
  } catch(e) {
    alert( e );
  }
}

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

function getPageSize() {
  var a, yScroll;
  if (window.innerHeight && window.scrollMaxY) {
    a = window.innerWidth + window.scrollMaxX;
    yScroll = window.innerHeight + window.scrollMaxY
  } else {
    if (document.body.scrollHeight > document.body.offsetHeight) {
      a = document.body.scrollWidth;
      yScroll = document.body.scrollHeight
    } else {
      a = document.body.offsetWidth;
      yScroll = document.body.offsetHeight
    }
  }
  var b, windowHeight;
  if (self.innerHeight) {
    if (document.documentElement.clientWidth) {
      b = document.documentElement.clientWidth
    } else {
      b = self.innerWidth
    }
    windowHeight = self.innerHeight
  } else {
    if (document.documentElement && document.documentElement.clientHeight) {
      b = document.documentElement.clientWidth;
      windowHeight = document.documentElement.clientHeight
    } else {
      if (document.body) {
        b = document.body.clientWidth;
        windowHeight = document.body.clientHeight
      }
    }
  }
  if (yScroll < windowHeight) {
    pageHeight = windowHeight
  } else {
    pageHeight = yScroll
  }
  if (a < b) {
    pageWidth = a
  } else {
    pageWidth = b
  }
  arrayPageSize = new Array(pageWidth, pageHeight, b, windowHeight);
  return arrayPageSize
}

function getPageScroll() {
  var a, yScroll;
  if (self.pageYOffset) {
    yScroll = self.pageYOffset;
    a = self.pageXOffset
  } else {
    if (document.documentElement && document.documentElement.scrollTop) {
      yScroll = document.documentElement.scrollTop;
      a = document.documentElement.scrollLeft
    } else {
      if (document.body) {
        yScroll = document.body.scrollTop;
        a = document.body.scrollLeft
      }
    }
  }
  arrayPageScroll = new Array(a, yScroll);
  return arrayPageScroll
}

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" });
  var browserName=navigator.appName;
  if (browserName != "Microsoft Internet Explorer") {  
    $("#GB_frame").css("height",GB_HEIGHT -18 +"px");
    $("#GB_frame").css("width",GB_WIDTH -5 +"px");
  } else {
    $("#GB_frame").css("height",GB_HEIGHT -28 +"px");
    $("#GB_frame").css("width",GB_WIDTH -10 +"px");
  }
}