function getCookie(name){
        var arg = name + "=";
        var alen = arg.length;
        var clen=document.cookie.length;
        var i=0;
        
        while (i< clen){
                var j = i+alen;
                if(document.cookie.substring(i,j)==arg){
                        var end = document.cookie.indexOf(";",j);
                        if(end== -1) end = document.cookie.length;
                        return unescape(document.cookie.substring(j,end));
                }
	        i = document.cookie.indexOf(" ", i)+1;
		    if (i==0) break;
        }
        return null;
}

function setCookie(name, value, termtime){
	var today = new Date();
	var expires = new Date();
	expires.setTime(today.getTime() + 1000*60*60*eval(termtime));
	document.cookie = name + "=" + escape(value)+ ((expires == null)? "" : (" ; expires=" + expires.toGMTString() +"; path=/"));
}