//头像上传预览

    $("#up").change(function() {

        var $file = $(this);

        var fileObj = $file[0];

        var windowURL = window.URL || window.webkitURL;

        var dataURL;

        var $img = $("#ImgPr");

        if(fileObj && fileObj.files && fileObj.files[0]){

        dataURL = windowURL.createObjectURL(fileObj.files[0]);

        $img.attr('src',dataURL);

        }else{

        dataURL = $file.val();

        var imgObj = document.getElementById("ImgPr");

        imgObj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)";

        imgObj.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = dataURL;

        }

    });

<div class="picbtn"><img id="ImgPr" src="data:images/neik.png"</div>

<a class="chooseimg" href="#"><input type="file" id="up">从手机相册中选择</a>

function $$(obj) {

    return document.getElementById(obj);

}

function upload(f){

    var str = "";

    for(var i=0;i<f.length;i++){

        var reader = new FileReader();

        reader.readAsDataURL(f[i]);

        reader.onload = function(e){

            str+="<img src='"+e.target.result+"'/>";

            $$("dd").innerHTML = str;

        }

    }

}

<input id="load" type="file" onchange="upload(this.files)" multiple/>

<div id="dd"></div>