function setCookie(name, value, expires, path, domain, secure)
	{
	    document.cookie= name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
	}

	/**
	 * Gets the value of the specified cookie.
	 *
	 * name  Name of the desired cookie.
	 *
	 * Returns a string containing value of specified cookie,
	 *   or null if cookie does not exist.
	 */
	function getCookie(name)
	{
	    var dc = document.cookie;
	    var prefix = name + "=";
	    var begin = dc.indexOf("; " + prefix);
	    if (begin == -1)
	    {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	    }
	    else
	    {
		begin += 2;
	    }
	    var end = document.cookie.indexOf(";", begin);
	    if (end == -1)
	    {
		end = dc.length;
	    }
	    return unescape(dc.substring(begin + prefix.length, end));
	}

	/**
	 * Deletes the specified cookie.
	 *
	 * name      name of the cookie
	 * [path]    path of the cookie (must be same as path used to create cookie)
	 * [domain]  domain of the cookie (must be same as domain used to create cookie)
	 */
	function deleteCookie(name, path, domain)
	{
	    if (getCookie(name))
	    {
		document.cookie = name + "=" + 
		    ((path) ? "; path=" + path : "") +
		    ((domain) ? "; domain=" + domain : "") +
		    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
	    }
	}
	function getkey(e){
		if (window.event)
		   return window.event.keyCode;
		else if (e)
		   return e.which;
		else
		   return null;
	}