jquery plugin Imgpreviewqs implementation upload picture preview _jquery

Upload picture preview, support IE6, IE7, IE8, IE9, IE10, IE11. Firefox, Chrome is not specifically tested, but the high version is supported.

Imgpreviewqs.js

/*! Relies on JQuery 1.5.2 (c) 2016 license:http://www.opensource.org/licenses/mit-license.php/(function ($) {$.fn.imgprevie WQS = function (options) {function Isie (ver) {var b = document.createelement (' b ') b.innerhtml = ' <!--[if IE ' + ver + ']><i></i><!
  [endif]--> ' return b.getelementsbytagname (' i '). length = = 1;
  Options = $.extend ({}, $.fn.imgpreviewqs.defaults,options);
  var $this =$ (this); $this. Change (function () {var regex=/(. *) \. (. *) \.
    Jpg|jpeg|gif|bmp|png) $/;
    var val = $this. val ();
      if (!regex.test (val)) {Alert ("Please select Picture");
    return false;
    } if (Browserqs.isie (8)) {HanderIE789 ($this); else if (window.
    FileReader) {handerfilereader ($this);
    else if (Browserqs.isie (9)) {HanderIE789 ($this);
    else if (Browserqs.isie (6)) {Handerother ($this);
    else if (Browserqs.isie (7)) {HanderIE789 ($this); } else{$ ("#" +options.destid). HTML (Browser does not support previewing pictures));
   
  }
  }); function Handerfilereader ($this) {var opreviewimg = null, Ofreader = new window. FileReader (), Rfilter =/^ (?: Image\/bmp|image\/cis\-cod|image\/gif|image\/ief|image\/jpeg|image\/jpeg|image\/jpeg |image\/pipeg|image\/png|image\/svg\+xml|image\/tiff|image\/x\-cmu\-raster|image\/x\-cmx|image\/x\-icon|image\ /x\-portable\-anymap|image\/x\-portable\-bitmap|image\/x\-portable\-graymap|image\/x\-portable\-pixmap|image\/
    X\-rgb|image\/x\-xbitmap|image\/x\-xpixmap|image\/x\-xwindowdump) $/i; Ofreader.onload = function (ofrevent) {$ ("#" +options.destid). HTML (" ");
     
    };
    var afiles = $this. Get (0). files;
    if (Afiles.length = = 0) {return;}
    if (!rfilter.test (Afiles[0].type)) {alert ("Please select Picture");
  Ofreader.readasdataurl (Afiles[0]); The function HanderIE789 ($this) {$ ("#" +options.destid). CSS ("filter", "Progid:DXImageTransform.Microsoft.AlphaImageL OadER (sizingmethod=scale,src= ' "+geturl ($this) +" ') "; The function Handerother ($this) {$ ("#" +options.destid). HTML (" ");
    function GetUrl ($this) {$this. Select ();
    $this. blur ();
    var imgsrc =document.selection.createrange (). text;
    Document.selection.empty ();
  return imgsrc; 
}
}; $.fn.imgpreviewqs.defaults = {destid: ""})
 (JQuery);