var COOKIE_DATAS = document.cookie;

function getCookie ( name )
{
	var strCookie

	var index = COOKIE_DATAS.indexOf ( name + "=" );
	var endstr = COOKIE_DATAS.indexOf(";", index);
	
	if ( index == -1 ) 
	{
		return null;
	}
	if ( endstr == -1 ) 
	{
		endstr = COOKIE_DATAS.length;
	}
	index = COOKIE_DATAS.indexOf( "=" , index ) + 1;

	return unescape ( COOKIE_DATAS.substring ( index, endstr ) );
}


function setCookie ( name, value ) 
{
	var today = new Date ( );
	var expire = new Date ( today.getTime ( ) + 28 * 24 * 60 * 60 * 1000 );
	
	if ( value != null && value != "" )
	{
		document.cookie = name + "=" + escape ( value ) + "; expires=" + expire.toGMTString ( );
	}
	COOKIE_DATAS = document.cookie;
}

function deleteCookie( name ) 
{
	$.cookie( name, null);
}