//浏览器最大化
window.self.focus();   
moveTo(0,0);   
window.resizeTo(screen.availWidth,screen.availHeight);

//内容放大到16、14、12像素字
function FontZoom(fsize){
	var ctext = document.getElementById("news_content");
	ctext.style.fontSize = fsize +"px";
}

//转播到腾讯微博
function postToWb(){
var _t = encodeURI(document.title);
var _url = encodeURI(document.location);
var _appkey = encodeURI("appkey");//你从腾讯获得的appkey
var _pic = encodeURI('');//（列如：var _pic='图片url1|图片url2|图片url3....）
var _site = '';//你的网站地址
var _u = 'http://v.t.qq.com/share/share.php?title='+_t+'&url='+_url+'&appkey='+_appkey+'&site='+_site+'&pic='+_pic;
window.open( _u,'转播到腾讯微博', 'width=700, height=680, top=0, left=0, toolbar=no, menubar=no, scrollbars=no, location=yes, resizable=no, status=no' );
}

//复制页面网址
document.writeln("<script type=\'text\/javascript\'>");
document.writeln("CopyURL=function(){");
document.writeln("try{");
document.writeln("clipboardData.setData(\'text\',location.href); ");
document.writeln("alert(\"你已经复制了本页面的地址\");");
document.writeln("}catch(e){");
document.writeln("}");
document.writeln("}");
document.writeln("<\/script>");


//检查搜索关键词有没有填写
function search_tag_keys(){
	 if (document.seo_search.tag.value == "请输入关键字!")
	{
		alert("请输入您要搜索的关键词!");
		document.seo_search.tag.focus();
		return (false);
	}
	
	if (document.seo_search.tag.value.length < 2)
	{
		alert("您输入的关键词太短了，至少大于一个字!");
		document.seo_search.tag.focus();
		return (false);
	}
}