//判斷照片大小
function getPhotoSize(obj){
photoExt=obj.value.substr(obj.value.lastIndexOf(“.”)).toLowerCase();//獲得檔案字尾名
if(photoExt!=’.jpg’){
alert(“請上傳字尾名為jpg的照片!”);
return false;
}
var fileSize = 0;
var isIE = /msie/i.test(navigator.userAgent) && !window.opera;
if (isIE && !obj.files) {
var filePath = obj.value;
var fileSystem = new ActiveXObject(“Scripting.FileSystemObject”);
var file = fileSystem.GetFile (filePath);
fileSize = file.Size;
}else {
fileSize = obj.files[0].size;
}
fileSize=Math.round(fileSize/1024*100)/100; //單位為KB
if(fileSize>=10){
alert(“照片最大尺寸為10KB，請重新上傳!”);
return false;
}
}