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 hideit() {

    document.getElementById('opacity').style.display = 'none';

 

}