Var whenready = (関数 () { var funcs = []; var ready = false; 関数handler(e) { if (ready) return; if (e.type = = "onreadystatechange" & & ドキュメント。readystate!= = "complete") { return; } for (var i = 0; i <関数。length; i ++) {Funcs [i] です。call (ドキュメント); } ready = true; Funcs = null; } if (ドキュメント。addeventlistener) {ドキュメント。addeventlistener ("domcontentloaded", handler, false); ドキュメント。addeventlistener ("readystatechange", handler, false); ウィンドウ。addeventlistener ("load", handler, false); } other if (ドキュメント。attachevent) {ドキュメント。attachevent ("onreadystatechange", handler); ウィンドウ。attachevent ("onload", handler); } 関数whenready (fn) { if (準備完了) { fn.call(document); } other {関数。push(fn); } } }) (); whenready (関数 () {Browserredirect (getinitialscale ()); }); 関数getinitialscale () { var firstdivwidth = document。getelementsbytagname ("div")[0] です。スタイル。width; var divwidth = parseint (firstdivwidth); var layoutviewport = document.doc umentelement clientwidth; 戻り値 = layoutviewport/divwidth;} 関数Browserredirect (value) {Var useragentvalue = ナビゲーター。useragent。tolowercase (); var isipad = useragentvalue match(/ipad/i) = = "ipad"; var isiphoneos = useragentvalue match(/iphone os/i) = = "iphone os"; var ismidp = useragentvalue match(/midp/i) = = "midp"; var isuc7 = useragentvalue match(/rv:1.2.3.4/i) = = "rv:1.2.3.4"; var isuc = useragentvalue match(/ucweb/i) = = "ucweb"; var isandroid = useragentvalue match(/android/i) = =" "; Var isce = useragentvalue.match(/窓ce/i) = =" 窓ce "; var iswindowsmobile = useragentvalue match(/Windows mobile/i) = =" Windows mobile "; var meta = ドキュメント。getelementsbyname (" viewport ")[0]; if (isipad | | isiphoneos | | ismidp) { meta。setattribute (" content ", " width = device-width "); } other if (isuc7 | | isuc | | isandroid | | isce | | iswindowsmobile) { meta。setattribute (" content ", "Initial-scale =" + value + ", width = device-width"); } other {meta.removeattribute ("content"); } }