function getCookie( name ) { startVal = document.cookie.indexOf( name + "=" ); if ( startVal == -1 ) return ""; startVal += (name.length + 1); endVal = document.cookie.indexOf( ";" , startVal ); if ( endVal == -1 ) endVal = document.cookie.length; return document.cookie.substring( startVal , endVal ); } function clearCookie( name ) { var exp = new Date(); document.cookie = name+"=exp; expires=" + exp.toGMTString(); return true; } function setCookie( name , value ) { document.cookie = name+"="+value; return true; }