var phonewidth = parseint(document.body.offsetwidth);//取得浏览器可见宽度
var phonescale = phonewidth/1920;//除以网页设计宽度
document.body.style.zoom=phonescale;
var ua = navigator.useragent;
window.onload = function(){ 
document.body.style.zoom=phonescale;
} 
window.onresize = function(){ 
document.body.style.zoom=phonescale;
if(ua.indexof("msie") != -1||ua.indexof("windows") != -1||ua.indexof("macintosh") != -1) {
if(document.fullscreen!=true){
location.reload();
}
}
}