function getCookie( name ) {
		var nameOfCookie = name + "=";
		var x = 0;
		while ( x <= document.cookie.length )
		{
			var y = (x+nameOfCookie.length);
			if ( document.cookie.substring( x, y ) == nameOfCookie ) {
				if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 )
					endOfCookie = document.cookie.length;
				return unescape( document.cookie.substring( y, endOfCookie ) );
			}
			x = document.cookie.indexOf( " ", x ) + 1;
			if ( x == 0 )
				break;
		}
		return "";
	}

	function setCookie( name, value, expiredays ) { 
		var todayDate = new Date(); 
		todayDate.setDate( todayDate.getDate() + expiredays ); 
		document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";" 
	}

	function randomRange(n1, n2) {
		return Math.floor( (Math.random() * (n2 - n1 + 1)) + n1 );
	}