function setCookie(NameOfCookie, value, expiredays) 
{
	var ExpireDate = new Date ();
	ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));
	document.cookie = NameOfCookie + "=" + value + 
	((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}

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 document.cookie.substring(c_start,c_end);
	   } 
    }
	return "";
} 

function setCookie_bak(NameOfCookie, value, expiredays) 
{
	var ExpireDate = new Date ();
	ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));
	document.cookie = NameOfCookie + "=" + escape(value) + 
	((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}

function getCookie_bak(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 "";
} 
function delCookie (NameOfCookie) 
{
	if (getCookie(NameOfCookie)) {
		document.cookie = NameOfCookie + "=" +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}