function getCookie(name)   
{   
	var arr = document.cookie.match(new RegExp("(^|)"+name+"=([^;]*)(;|$)"));   
	if(arr != null)  
		return unescape(arr[2]);   
	return   null;   
}

function setCookie(name,value)   
{   
 	var Days = 1;   //   cookie      30      
	var exp = new Date();         //new   Date("December   31,   9998");   
	exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);   
	document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();   
}