// JavaScript Document

jQuery(function( $ ){
	//borrowed from jQuery easing plugin
	//http://gsgd.co.uk/sandbox/jquery.easing.php
	$.easing.backout = function(x, t, b, c, d){
		var s=1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	};
	
	$('#screen').scrollShow({
		view:'#view',
		content:'#images',
		easing:'backout',
		wrappers:'link,crop',
		navigators:'a[id]',
		navigationMode:'s',
		circular:false,
		start:getIdfromQueryStringInt("pageId")
	});
 });

function getIdfromQueryStringInt(parm) {
	var query = window.location.search.substring(1);
	var parms = query.split('&');
	var parmName = parm.toLowerCase();
	var id = 0;
	for (var i=0; i<parms.length; i++) {
		var pos = parms[i].indexOf('=');
		if (pos > 0) {
			var key = parms[i].substring(0,pos).toLowerCase();
			var val = parms[i].substring(pos+1);
			
			if (key == parmName) {
				return parseInt(val);
			}
		}
	}
	return parseInt(id);
}