H5端软键盘把footer底部导航栏顶上去了怎么解决？

var oHeight = $(document).height(); //浏览器当前的高度 
$(window).resize(function(){//ios软键盘弹出不会触发resize事件
     if($(document).height() < oHeight){
     $("#footer").css("position","static"); }else{
     $("#footer").css("position","absolute"); //adsolute或fixed，看你布局
} }); 

$("body").find("input[type=text]").each(function() {
    $(this).bind('focus', function() {
        $('#footer').css('display', 'none');
    }).bind('blur', function() {
        $('#footer').css({
            'position': 'fixed',
            'bottom': '0'
        });
        var footer = $('#footer');
                    var display = footer.css('display');
                    if (display == 'none') {
                        footer.show();
                    } else {
                        footer.hide();
                    }
    });
});

$(function () {
    $('input,textarea').on('focus', function () {
        //立即隐藏
        $('.footer').css('display', 'none');
        var target = this;
        setTimeout(function () {
            target.scrollIntoViewIfNeeded();
            //target.scrollIntoView(true);
            //console.log('scrollIntoViewIfNeeded');
        }, 200);
    });
    $('input,textarea').on('click', function () {
        var target = this;
        setTimeout(function () {
            target.scrollIntoViewIfNeeded();
            //target.scrollIntoView(true);
            //console.log('scrollIntoViewIfNeeded');
        }, 200);
    });
    $('input,textarea').on('blur', function () {
        $('.footer').css({
            'position': 'fixed',
            'bottom': '0'
        });
        var footer = $('.footer');
        var display = footer.css('display');
        if (display === 'none') {
            footer.fadeIn(2000, function () {//fade
                    footer.show();
            });

            //setTimeout(function () {
            //    footer.show();
            //}, 200);
        } else {
            footer.hide();
        }
    });
});