function dealCookie() {
  if(document.getElementById('cookie').checked){
    createCookie('email_cookie', document.getElementById('email').value, 1000);
    createCookie('pass_cookie', document.getElementById('pass').value, 1000);
    createCookie('checkbox_cookie', document.getElementById('cookie').checked, 1000);
    //alert('OK');
  }else{
    eraseCookie('email_cookie');
    eraseCookie('pass_cookie');
    eraseCookie('checkbox_cookie');
    //alert('OK');
  }
}

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 '';
}

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

function writePass() {

                 if(readCookie('checkbox_cookie')== 'true') {document.getElementById('cookie').checked = true; }
                 else {document.getElementById('cookie').checked = false;}
                 if("" == "")
                 {
                   document.getElementById('email').value = decodeURIComponent(readCookie('email_cookie'));
                   document.getElementById('pass').value = decodeURIComponent(readCookie('pass_cookie'));
                 }else
                 {
                   document.getElementById('email').value = "";
                   document.getElementById('pass').value = "";
                 }
}