function SetCookie(cookieName,cookieValue,nDays) {
 // doEmailListSubmit();
  var today = new Date();
  var expire = new Date();
  if (nDays==null || nDays==0) nDays=1;
  expire.setTime(today.getTime() + 3600000*24*nDays);
  document.cookie = cookieName+"="+escape(cookieValue)
  + ";expires="+expire.toGMTString() + ";path=/;";
  }
  
function ReadCookie(cookieName) {
 var theCookie=" "+document.cookie;
 var ind=theCookie.indexOf(" "+cookieName+"=");
 if (ind==-1) ind=theCookie.indexOf(";"+cookieName+"=");
 if (ind==-1 || cookieName=="") return "";
 var ind1=theCookie.indexOf(";",ind+1);
 if (ind1==-1) ind1=theCookie.length; 
 return unescape(theCookie.substring(ind+cookieName.length+2,ind1));
}

function doEmailListSubmit() {

  var f = document.forms['myForm'];

  if (f.email_address.value.length < 6 || f.email_address.value.indexOf('@') == -1 || f.email_address.value.indexOf('.') == -1) {

    alert('Please provide email address.');

    f.email_address.focus();

    return false;

  } 

SetCookie('email', f.email_address.value, 1);


}