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 getCookie_textarea(name){
var cname = name + "="; 
var dc = document.cookie; 
if (dc.length > 0) { 
begin = dc.indexOf(cname); 
if (begin != -1) { 
begin += cname.length; 
end = dc.indexOf(";", begin);
if (end == -1) end = dc.length;
return unescape(dc.substring(begin, end));
} 
}
return null;
}

// Use this function to save a cookie.
function setCookie_textarea(name, value, expires) {
document.cookie = name + "=" + escape(value) + "; path=/" +
((expires == null) ? "" : "; expires=" + expires.toGMTString());
}

// Use this function to delete a cookie.
function delCookie_textarea(name) {
document.cookie = name + "=; expires=Thu, 01-Jan-70 00:00:01 GMT" + "; path=/";
}

// Function to retrieve form element's value.
function getValue_textarea(element) {
var value = getCookie_textarea(element.name);
if (value != null) element.value = value;
}

// Function to save form element's value.
function setValue_textarea(element) {
setCookie_textarea(element.name, element.value, exp);
}

var exp = new Date(); 
exp.setTime(exp.getTime() + (1000 * 60 * 60 * 24 * 31));