/* Basic cookie functionality, copied from w3schools (http://www.w3schools.com/JS/js_cookies.asp). */

function setCookie(c_name,value,expiredays)
{
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value) + ";path=/" +
	((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
}

function setShortCookie(c_name,value,expireminutes)
{
	if ( expireminutes == null || expireminutes <= 0 )
		expireminutes = 10;
	var today = new Date();
	var exdate = new Date( today.getTime() + 1000 * 60 * expireminutes );
	document.cookie=c_name+ "=" +escape(value) + ";path=/" + ";expires="+exdate.toUTCString();
}

function getCookie(c_name)
{
	if (document.cookie.length>0) {
	  c_start=document.cookie.indexOf(c_name + "=");
	  if (c_start!=-1) {
		c_start=c_start + c_name.length+1;
		c_end=document.cookie.indexOf(";",c_start);
		if (c_end==-1) c_end=document.cookie.length;
		return unescape(document.cookie.substring(c_start,c_end));
	  }
	}
	return "";
}