xu33

function setSelectionRange(input, selectionStart, selectionEnd) {
  if (input.setSelectionRange) {
    input.focus();
    input.setSelectionRange(selectionStart, selectionEnd);
  }
  else if (input.createTextRange) {
    var range = input.createTextRange();
    range.collapse(true);
    range.moveEnd('character', selectionEnd);
    range.moveStart('character', selectionStart);

xu33

function view() {
    var f = document.getElementById("file").files[0];
    var reader = new FileReader();
    reader.onload = (function(evt) {  //evt get all value
        document.getElementById('div').innerHTML = 
            "PIC :<img src=" +
            evt.target.result + "/>" ;
    });
    reader.readAsDataURL(f);
}

xu33

function htmlEscape(str) {
    return String(str)
            .replace(/&/g, '&')
            .replace(/"/g, '"')
            .replace(/'/g, ''')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;');
}

function htmlUnescape(value){