append a value to the query string

file.js

function checkAndSetAccount(){
	var q = riot.route.query();
	if (Cookies.get('account')==q.account) return;//already done.
	if (q.account) {
		Cookies.set('account',q.account);
		auth.trigger('switchAccount');
		}
	if (!q.account && Cookies.get('account')!==Cookies.get('accountOriginal')) {//nothing in query string: need to set it
		//console.log(window.location)
		var newLocation=window.location.hash;
		if(!newLocation) return riot.route("account?account="+Cookies.get('account'));//if failure, just send to account page
		newLocation = newLocation.substring(1);//strip the # from the start
		if(newLocation.indexOf('?')!==-1)  return riot.route(newLocation + "&account="+Cookies.get('account'));//already has a ?
		return riot.route(newLocation + "?account="+Cookies.get('account'));
		}
	}