/* 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) {
	smoothScrollUp();
	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='img/close.gif' alt='Close' title='Close'></div>");
		$('#GB_overlay').hide();
		$('#GB_window').hide();
		$("#GB_window img").click(GB_hide);
		$("#GB_overlay").click(GB_hide);
		$(window).resize(GB_position);
		GB_DONE = true;
	}
	$("#GB_window").append("<iframe id='GB_frame' name='GB_frame' allowtransparency=true src='"+url+"'></iframe>");

	$("#GB_caption").html(caption);
	
	$("#GB_frame").load(function() {
		$("#GB_overlay").fadeIn(500, function() {
			GB_position();
			$("#GB_window").fadeIn(250);
		});
	});
	
}

function GB_hide() {
  $("#GB_window,#GB_overlay").fadeOut(500);
  $("#GB_frame").remove();
}

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 smoothScrollUp() {
	smoothY = window.pageYOffset;
	if (smoothY > 0) {
		smoothY = smoothY - 15;
		window.scroll(0,smoothY);
		scrollup = setTimeout("smoothScrollUp()", 10);
	}
}