//Time in days to save form fields values after last visit
//Set to different value to reset cookie (ie: "101 days" instead of "100 days"):
var memoryduration="100 days"

function setformobjects(){
  var theforms=document.forms
  memorizearray=new Array()
  for (i=0; i< theforms.length; i++){
    for (j=0; j< theforms[i].elements.length; j++){
      if (theforms[i].elements[j].className.indexOf("memorize")!=-1 && theforms[i].elements[j].type=="text")
        memorizearray[memorizearray.length]=theforms[i].elements[j]
    }
  }
  var retrievedvalues=get_cookie("mvalue"+window.location.pathname)
  if (retrievedvalues!=""){
    retrievedvalues=retrievedvalues.split("|")
    if (retrievedvalues[retrievedvalues.length-1]!=parseInt(memoryduration)) //reset cookie if var memoryduration has changed
      resetcookie("mvalue"+window.location.pathname)
    else{
      for (i=0; i<memorizearray.length; i++){
        if (retrievedvalues[i]!="empty_value")
          memorizearray[i].value=retrievedvalues[i]
      }
    }
  }
}

function get_cookie(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    if (offset != -1) { // if cookie exists
      offset += search.length
      end = document.cookie.indexOf(";", offset);
      if (end == -1)
         end = document.cookie.length;
      returnvalue=unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

function resetcookie(id){
  var expireDate = new Date()
  expireDate.setDate(expireDate.getDate()-10)
  document.cookie = id+"=;path=/;expires=" + expireDate.toGMTString()
}

function saveformvalues(){
  var formvalues=new Array(), temp
  for (i=0; i<memorizearray.length; i++){
    temp=memorizearray[i].value!=""? memorizearray[i].value : "empty_value"
    formvalues[formvalues.length]=escape(temp)
  }
  formvalues[formvalues.length]=parseInt(memoryduration)
  formvalues=formvalues.join("|")
  var expireDate = new Date()
  expireDate.setDate(expireDate.getDate()+parseInt(memoryduration))
  document.cookie = "mvalue"+window.location.pathname+"="+formvalues+"; path=/;expires=" + expireDate.toGMTString()
}

if (window.addEventListener)
window.addEventListener("load", setformobjects, false)
else if (window.attachEvent)
window.attachEvent("onload", setformobjects)
else if (document.getElementById)
window.onload=setformobjects
if (document.getElementById)
window.onunload=saveformvalues