Mon 21 Jul 22:43:21 CEST 2025
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js/web/jamutils.js
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241
js/web/jamutils.js
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/**
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** ==================================
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** OOOO OOOO OOOO O O OOOO
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** O O O O O O O O O
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** O O O O O O O O O
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** OOOO OOOO OOOO O OOO OOOO
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** O O O O O O O O O
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** O O O O O O O O O
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** OOOO OOOO OOOO OOOO O O OOOO
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** ==================================
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** BSSLAB, Dr. Stefan Bosse http://www.bsslab.de
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**
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** COPYRIGHT: THIS SOFTWARE, EXECUTABLE AND SOURCE CODE IS OWNED
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** BY THE AUTHOR.
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** THIS SOURCE CODE MAY NOT BE COPIED, EXTRACTED,
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** MODIFIED, OR OTHERWISE USED IN A CONTEXT
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** OUTSIDE OF THE SOFTWARE SYSTEM.
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**
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** $AUTHORS: Stefan Bosse
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** $INITIAL: (C) 2006-2016 BSSLAB
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** $CREATED: 29/3/16 by sbosse.
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** $VERSION: 1.1.2
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**
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** $INFO:
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**
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** JAM Main World utils // WEB edition
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**
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** $ENDOFINFO
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*/
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function out(txt) {console.log(txt)};
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function changecss(theClass,element,value) {
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//Last Updated on July 4, 2011
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//documentation for this script at
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//http://www.shawnolson.net/a/503/altering-css-class-attributes-with-javascript.html
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var cssRules;
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for (var S = 0; S < document.styleSheets.length; S++) {
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try {
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document.styleSheets[S].insertRule(theClass+' { '+element+': '+value+'; }',
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document.styleSheets[S][cssRules].length);
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} catch(err) {
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try{
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document.styleSheets[S].addRule(theClass,element+': '+value+';');
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} catch(err){
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try{
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if (document.styleSheets[S]['rules']) {
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cssRules = 'rules';
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} else if (document.styleSheets[S]['cssRules']) {
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cssRules = 'cssRules';
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} else {
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//no rules found... browser unknown
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}
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for (var R = 0; R < document.styleSheets[S][cssRules].length; R++) {
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if (document.styleSheets[S][cssRules][R].selectorText == theClass) {
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if(document.styleSheets[S][cssRules][R].style[element]){
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document.styleSheets[S][cssRules][R].style[element] = value;
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break;
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}
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}
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}
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} catch (err){}
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}
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}
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}
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}
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function load (text,maskext) {
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var m = {},
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p,
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mask = {
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console:{
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log:out,
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warn:out
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},
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global:{},
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inspect:function (o) {console.log(o)},
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module:{exports:{}},
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process:{
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argv:[],
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cwd:(typeof process != 'undefined')?process.cwd:'/',
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env:(typeof process != 'undefined')?process.env:{},
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exit:function () {},
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on:(typeof process != 'undefined')?process.on:function () {}
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}
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},
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text, reg;
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if (maskext) for (p in maskext) {
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mask[p]=maskext[p];
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}
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reg = /#!/
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text=text.replace(reg,'//');
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with (mask) {
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m=eval('var x={main:function(args) {process.argv=args; '+text+'}}; x')
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}
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m.module=mask.module;
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return m;
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}
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function loadfile(file,maskext) {
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var xmlhttp, text;
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xmlhttp = new XMLHttpRequest();
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xmlhttp.overrideMimeType('text/plain');
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xmlhttp.open('GET', file, false);
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xmlhttp.send();
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text = xmlhttp.responseText;
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console.log('Loaded '+file+' ['+text.length+']')
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return load(text,maskext);
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}
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var O = {
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isArray:function (o) {
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if (o==undefined || o ==null) return false;
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else return typeof o == "array" || (typeof o == "object" && o.constructor === Array);
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},
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isObject:function (o) {
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return typeof o == "object";
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}
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}
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var S = {
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startsWith : function (str,head) {
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return !str.indexOf(head);
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},
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sub: function (str,off,len) {
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if (len)
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return str.substr(off,off+len);
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else
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return str.substr(off);
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},
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/** Remove leading and trailing characters from string
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*
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* @param str
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* @param {number} pref number of head characters to remove
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* @param {number} post number of tail characters to remove
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* @returns {*}
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*/
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trim: function (str,pref,post) {
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if (str.length==0 ||
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pref>str.length ||
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post>str.length ||
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pref < 0 || post < 0 ||
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(pref==0 && post==0)
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) return str;
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return str.substr(pref,str.length-pref-post);
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}
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}
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function BlobIt (blobParts,options) {
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var view = window;
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view.URL = view.URL || view.webkitURL;
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try{
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return new view.Blob( blobParts, options);
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}
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catch(e){
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var BlobBuilder = view.BlobBuilder ||
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view.WebKitBlobBuilder ||
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view.MozBlobBuilder ||
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view.MSBlobBuilder,
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type = options ? options.type : undefined;
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var builder = new BlobBuilder();
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if (blobParts) {
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for (var i = 0, len = blobParts.length; i < len; i++) {
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if (Uint8Array && blobParts[i] instanceof Uint8Array) {
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builder.append(blobParts[i].buffer);
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} else {
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builder.append(blobParts[i]);
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}
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}
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}
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var blob = builder.getBlob(type);
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if (!blob.slice && blob.webkitSlice) {
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blob.slice = blob.webkitSlice;
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}
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return blob;
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}
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}
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function fireClick(node){
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if ( document.createEvent ) {
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var evt = document.createEvent('MouseEvents');
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evt.initEvent('click', true, false);
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node.dispatchEvent(evt);
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} else if( document.createEventObject ) {
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node.fireEvent('onclick') ;
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} else if (typeof node.onclick == 'function' ) {
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node.onclick();
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}
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}
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function saveTextAsFile(text,filename)
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{
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var textToWrite = text; // document.getElementById("inputTextToSave").value;
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var textFileAsBlob = BlobIt([textToWrite], {type:'text/plain'});
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var fileNameToSaveAs = filename; // document.getElementById("inputFileNameToSaveAs").value;
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var downloadLink = document.createElement("a");
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downloadLink.download = fileNameToSaveAs;
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downloadLink.innerHTML = "Download File";
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downloadLink.target="_blank";
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if (window.webkitURL != null)
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{
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// Chrome allows the link to be clicked
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// without actually adding it to the DOM.
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downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob);
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}
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else
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{
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// Firefox requires the link to be added to the DOM
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// before it can be clicked.
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downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
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downloadLink.onclick = destroyClickedElement;
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downloadLink.style.display = "none";
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document.body.appendChild(downloadLink);
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}
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fireClick(downloadLink)
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}
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function destroyClickedElement(event)
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{
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document.body.removeChild(event.target);
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}
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function loadFileAsText(input,callback)
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{
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var fileToLoad = document.getElementById(input).files[0];
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var fileReader = new FileReader();
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fileReader.onload = function(fileLoadedEvent)
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{
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var textFromFileLoaded = fileLoadedEvent.target.result;
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callback(textFromFileLoaded);
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};
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fileReader.readAsText(fileToLoad, "UTF-8");
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}
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