var userAgent = window.navigator.userAgent.toLowerCase();
if((navigator.userAgent.indexOf('Android') > 0 && navigator.userAgent.indexOf('Mobile') == -1) || navigator.userAgent.indexOf('A1_07') > 0 || navigator.userAgent.indexOf('SC-01C') > 0 || navigator.userAgent.indexOf('iPad') > 0){
//タブレット
var meta = document.createElement("meta");
meta.setAttribute("name", "viewport");
meta.setAttribute("content","width=1040");
document.getElementsByTagName("head")[0].appendChild(meta);
document.write('');
}
else if ((navigator.userAgent.indexOf('iPhone') > 0 && navigator.userAgent.indexOf('iPad') == -1) || navigator.userAgent.indexOf('iPod') > 0 || (navigator.userAgent.indexOf('Android') > 0 && navigator.userAgent.indexOf('Mobile') > 0)){
//スマホ
if (getBrowserWidth() > 1039 ){
var meta = document.createElement("meta");
meta.setAttribute("name", "viewport");
// meta.setAttribute("content","width=device-width,initial-scale=1.0,minimum-scale=1.0");
meta.setAttribute("content","width=320,initial-scale=1.0");
document.getElementsByTagName("head")[0].appendChild(meta);
document.write('');
}
else{
var meta = document.createElement("meta");
meta.setAttribute("name", "viewport");
// meta.setAttribute("content","width=device-width,minimum-scale=1");
meta.setAttribute("content","width=320,initial-scale=1.0");
// meta.setAttribute("content","width=device-width,initial-scale=1.0,minimum-scale=1.0");
document.getElementsByTagName("head")[0].appendChild(meta);
document.write('');
}
document.write('');
document.write('');
}
else{
//PC
var meta = document.createElement("meta");
meta.setAttribute("name", "viewport");
meta.setAttribute("content","width=1040");
document.getElementsByTagName("head")[0].appendChild(meta);
document.write('');
}
function getBrowserWidth1(){
if(window.innerWidth){return window.innerWidth;}
if(document.documentElement && document.documentElement.clientWidth != 0){return document.documentElement.clientWidth;}
else if( document.body){return document.body.clientWidth;}
return 0;
}
function getBrowserWidth(){
if(navigator.userAgent.indexOf('iPhone') != -1 || navigator.userAgent.indexOf('iPad') != -1) {
var myscreenwidth = window.screen.width * window.devicePixelRatio;
} else if(navigator.userAgent.indexOf('Android 2') != -1) {
var myscreenwidth = window.outerWidth;
} else {
var myscreenwidth = window.screen.width;
}
return myscreenwidth;
}