function setCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  var now = new Date();
  //window.status = 'Set Cookie "'+name+'" to "'+value+'" at '+now+' for '+days+' days';
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

var onloads = {};
var onunloads = {};

function addonload(funcname) {
	onloads[funcname] = true;
}
function delonload(funcname) {
	delete onloads[funcname];
}
function addonunload(funcname) {
	onunloads[funcname] = true;
}
function delonunload(funcname) {
	delete onunloads[funcname];
}

function runonloads(e) {
	for (var funcname in onloads) {
		window[funcname](e);
	}
}
function runonunloads(e) {
	for (var funcname in onunloads) {
		window[funcname](e);
	}
}

window.onload = runonloads;
window.onunload = runonunloads;