if (top.location != self.location) top.location = self.location;

function showObj(obj) {
	jobj=document.getElementById(obj);
	jobj.style.display = 'block';
}

function showWindow(obj) {
	jobj=document.getElementById(obj);
	jobj.style.display = 'block';
	centerPopup(obj);
	$("#theShadow").css({
			"opacity": "0.7",
			"min-height" : "500"
		});
		$("#theShadow").fadeIn("slow");
		$("#"+obj).fadeIn("slow");
}
function hideObj(obj) {
	jobj=document.getElementById(obj);
	jobj.style.display = 'none';
}


function centerPopup(obj){

	//request data for centering
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popupHeight = $("#"+obj).height();
	var popupWidth = $("#"+obj).width();
	//centering
	$("#"+obj).css({
		"position": "absolute",
		"top": 20,
		//"top": windowHeight/2-popupHeight/2,
		"left": windowWidth/2-popupWidth/2
	});

}




/*
   name - name of the cookie
   value - value of the cookie
   [expires] - expiration date of the cookie
     (defaults to end of current session)
   [path] - path for which the cookie is valid
     (defaults to path of calling document)
   [domain] - domain for which the cookie is valid
     (defaults to domain of calling document)
   [secure] - Boolean value indicating if the cookie transmission requires
     a secure transmission
   * an argument defaults when it is assigned null as a placeholder
   * a null placeholder is not required for trailing omitted arguments
*/

function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}


/*
  name - name of the desired cookie
  return string containing value of specified cookie or null
  if cookie does not exist
*/

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}


/*
   name - name of the cookie
   [path] - path of the cookie (must be same as path used to create cookie)
   [domain] - domain of the cookie (must be same as domain used to
     create cookie)
   path and domain default if assigned null or omitted if no explicit
     argument proceeds
*/

function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

// date - any instance of the Date object
// * hand all instances of the Date object to this function for "repairs"

function fixDate(date) {
  var base = new Date(0);
  var skew = base.getTime();
  if (skew > 0)
    date.setTime(date.getTime() - skew);
}

function isNull(val) { return (val == null); }

function hideLinks(){
hideObj('features');
hideObj('about');
hideObj('contact-info');
hideObj('help');
}
function hideObj(obj) {
	jobj=document.getElementById(obj);
	jobj.style.display='none';
}
function showPackage(obj){
	jobj=document.getElementById(obj);
	if(isNull(jobj)) {
		return;
	}
	jobj.style.display = 'block';
}

function startDemo(){

//use this to set demo.jpg for demo: 
setCookie('loadimage','demo.jpg');
//location.href="page4.htm";
}


if (getCookie("loadimage")==null){startDemo();}