/*红海设计：www.Red-sea.cn    联系方式：024-62380646*/

//去左空格 
function ltrim(s){ 
	return s.replace( /^\s*/, ""); 
} 

//去右空格 
function rtrim(s){ 
	return s.replace( /\s*$/, ""); 
} 

//去左右空格 
function trim(s){ 
	return rtrim(ltrim(s)); 
} 

//写入COOKIE 
function set_cookie(name,value,expires, path,domain,secure){ 
	document.cookie = name + "=" + encodeURI(value) + 
	( (expires) ? ";expires=" + expires : "" ) + 
	( (path) ? ";path=" + path : "" ) + 
	( (domain) ? ";domain=" + domain : "" ) + 
	( (secure) ? ";secure" : ""); 
} 

//读取COOKIE
function read_cookie(name){ 
	var cookie_string = decodeURI(document.cookie); 
	var cookie_array = cookie_string.split(";"); 
	for(var i=0;i<cookie_array.length;i++){ 
		var cookie_num = cookie_array[i].split("="); 
		var cookie_name = cookie_num[0]; 
		var cookie_value = cookie_num[1]; 
		if(trim(cookie_name)==name){ 
			return cookie_value; 
		} 
	} 
	return false; 
} 

//更换样式表写入状态到COOKIE 
function change(name){ 
	document.getElementById("a").href = "/css/"+name+".css";
	var to_css = "/css/"+name+".css";
	var cookie_date = new Date(); 
	cookie_date.setFullYear(cookie_date.getFullYear()+1);
	set_cookie("css_style",to_css,cookie_date.toUTCString()); 
} 

var get = read_cookie("css_style"); 
//调用COOKIE的样式表 
if(get!=false){ 
	document.getElementById("a").href = get; 
}