/* Greybox Redux
 * Required: http://jquery.com/
 * Written by: John Resig, Modified by Dale Hopkins
 * 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;
var gb_onclose = undefined;

function GB_show(caption, url, height, width, onclose, postdata, onload) {
 try {
  GB_HEIGHT = height || 400;
  GB_WIDTH = width || 400;
  gb_onclose = onclose;
  if(!GB_DONE) {
   $("body")
   .append("<div id='GB_overlay'></div><div id='GB_window'><img class='gb_icon' src='" + PATH_BASE + "/img/gb/w_close.gif' alt='Close window'/>"
   + "<div id='GB_caption'></div></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("<div id='GB_frame'>Loading...</div>");  
  $.post(url, postdata, function(data)
   {
    $("#GB_frame").html(data);
    if(onload) {
    	onload();
    }
   });

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

  $("#GB_window").show();
 }
 catch(e) {
  alert( e );
 }
}

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

function GB_position() {
 var de = document.documentElement;
 var w = self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
 var h = self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
 
 $("#GB_window").css({width:GB_WIDTH+"px",height:GB_HEIGHT+"px",
 left: ((w - GB_WIDTH)/2)+"px", top: ((h - GB_HEIGHT)/2)+"px" });
 $("#GB_frame").css("height",GB_HEIGHT - 42 +"px");
}