JavaScript AutoSave

AutoSave.js

function AutoSave(it) {
    var _value = it.value;
	if (_value) {

        var expDays = 30;
		var exp = new Date();
		exp.setTime( exp.getTime() + (expDays * 86400000) );
		var expires='; expires=' + exp.toGMTString();

		document.cookie = "AutoSaveContent=" + escape (_value) + expires;
	}
}

function AutoLoad(it) {
    var _value = it.value;
    if (!_value) {
        var _LastContent = GetCookie('AutoSaveContent');

        if (!_LastContent) return;

        if (confirm("Load Last AutoSave Content?")) {
            it.value = _LastContent;
            return true;
        }
    }
}

function getCookieVal (offset) {
	var endstr=document.cookie.indexOf (";",offset);
	if (endstr==-1) endstr=document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name){
	var arg=name+"=";
	var alen=arg.length;
	var clen=document.cookie.length;
	var i = 0;
	while (i<clen){
		var j=i+alen;
		if (document.cookie.substring(i,j)==arg) return getCookieVal (j);
		i = document.cookie.indexOf(" ",i)+1;
		if (i==0) break;
	}
	return null;
}

function DeleteCookie (name) {
	var exp=new Date();
	exp.setTime (exp.getTime()-1);
	var cval=GetCookie (name);
	document.cookie=name+"="+cval+";expires="+exp.toGMTString();
}