function suitImg(id, maxWidth) {
var i = new Image();
i.src = id.src;
if (id.width > maxWidth) {
id.height = id.height*maxWidth/id.width;
id.width = maxWidth;
}
}
function addFav(){   // 加入收藏夹
if (document.all) {
window.external.addFavorite(window.location.href, document.title);
} else if (window.sidebar) {
window.sidebar.addPanel(document.title, window.location.href, "");
}
}

function setHome(){   // 设置首页
if (document.all) {
document.body.style.behavior = 'url(#default#homepage)';
document.body.setHomePage(window.location.href);
} else if (window.sidebar) {
if(window.netscape) {
try {
netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
}
catch (e) {
alert('此操作被浏览器拒绝！\n请在浏览器地址栏输入“about:config”并回车\n然后将 [signed.applets.codebase_principal_support]的值设置为’true’,双击即可。');
}
var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
prefs.setCharPref('browser.startup.homepage', window.location.href);
}
}
}
function getId(id){
return document.getElementById(id);
}