function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	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;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function cookiesEnabled(){
	createCookie('testCookie','test',1);
	if (readCookie('testCookie')=='test'){
		eraseCookie(test);
		return true;
	}
	return false;
}

function show_welcome_message(){
	if (readCookie('ibox_shown')!='yes'){
		//showIbox
		box_element = document.getElementById('welcome_box');
		iBox.show(box_element );
		  createCookie('ibox_shown','yes',365);
	}
}