/* 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;
var GB_ANIMATION = true;
$(document).ready(function(){
	$("a.greybox").click(function(){
		var t = this.title || $(this).text() || this.href;
		var queryString = this.href.replace(/^[^\?]+\??/,'');
		var url=this.href.replace(queryString,'');
		var params = parseQuery( queryString );
		GB_WIDTH = (params['width']*1) + 30;
		GB_HEIGHT = (params['height']*1) + 40;
		GB_show(t,this.href,GB_HEIGHT,GB_WIDTH);
		return false;
	});
});

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

}

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

function GB_position() {
	var pagesize = getPageSize();	
	var arrayPageScroll = getPageScrollTop();
	
	$("#GB_window").css({width:GB_WIDTH+"px",height:GB_HEIGHT+"px",
	left: ((pagesize[0] - GB_WIDTH)/2)+"px", top: (arrayPageScroll[1] + ((pagesize[1]-GB_HEIGHT)/2))+"px" });
	$("#GB_frame").css("height",GB_HEIGHT - 32 +"px");
	GB_overlaySize();

}
function GB_overlaySize(){
	if (window.innerHeight && window.scrollMaxY) {	
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		yScroll = document.body.offsetHeight;
  	}
	$("#GB_overlay").css("height",yScroll +"px");
}
function parseQuery ( query ) 
{
	var Params = new Object ();
	 if ( ! query ) return Params; // return empty object
		 var Pairs = query.split(/[;&]/);
	 for ( var i = 0; i < Pairs.length; i++ ) 
	 {
			var KeyVal = Pairs[i].split('=');
			if ( ! KeyVal || KeyVal.length != 2 ) continue;
			var key = unescape( KeyVal[0] );
			var val = unescape( KeyVal[1] );
			val = val.replace(/\+/g, ' ');
			Params[key] = val;
	 }
	 return Params;
}

function getPageScrollTop(){
	var yScrolltop;
	if (self.pageYOffset) {
		yScrolltop = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScrolltop = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScrolltop = document.body.scrollTop;
	}
	arrayPageScroll = new Array('',yScrolltop) 
	return arrayPageScroll;
}

function getPageSize(){
	var de = document.documentElement;
	var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
	
	arrayPageSize = new Array(w,h) 
	return arrayPageSize;
}