This file is intended for Quick picking lottery Max numbers based on past results.<br/>
<br/>
Lottery past results file: <input type="file" id="fileinput" /> <br/>

<script type="text/javascript">
  var Entries = [];
  
  function isNumeric(n) {
    return !isNaN(parseFloat(n)) && isFinite(n);
  }
  function swapAllEntries(){
	var swapIndex = 0;
	var temp = 0;
	for (var i = 0;i<Entries.length;i++){
		swapIndex = Math.floor((Math.random() * Entries.length));
		temp = Entries[i];
		Entries[i] = Entries[swapIndex];
		Entries[swapIndex] = temp;
	}
  }
  function readSingleFile(evt) {
    //Retrieve the first (and only!) File from the FileList object
    var f = evt.target.files[0]; 

    if (f) {
      var r = new FileReader();
      r.onload = function(e) { 
	    var contents = e.target.result;
		
		Entries = [];
        var lines = contents.split("\n");       //break file into lines
		var numberOfLines = lines.length;
		alert("number of lines: " + numberOfLines);
		for (var i = 0; i < numberOfLines ; i++ ){ //for each line, break line up into entries
			entries = lines[i].split(" ");
			if (isNumeric(entries[0])){
				entry1 = parseInt(entries[0]);
				entry2 = parseInt(entries[1]);
				entry3 = parseInt(entries[2]);
				entry4 = parseInt(entries[3]);
				allentries = entry2 + entry3 + entry4;
				for (var j = 0;j<allentries;j++){
					Entries[Entries.length] = entry1;
				}
				
			}
		}
		alert ("File read." + "\n" + "Entries read: " + Entries.length);
      }
      r.readAsText(f);
    } else { 
      alert("Failed to load file");
    }
  }
  function quickpick(){
		var QuickPick = [];
		var selected = 1;
		var selectIndex = 0;
		swapAllEntries();  //swap all entries so that it's more even more random and not chunked together
		if (Entries.length > 6){
			for (var i=0;i<7;i++){
				selected = 1; // indicates number is already selected so it runs while loop at least one time
				while (selected == 1){
					selected = 0;  // indicates that number is not selected yet
					selectIndex = Math.floor((Math.random() * Entries.length));
					QuickPick[i] = Entries[selectIndex];
					for (var j=0;j<i;j++){ // checks all QuickPicks at index less than current index
						if (QuickPick[i] == QuickPick[j]){
							selected = 1; // indicates that the number is already selected and so we're stuck in the while loop
						}
					}
				}
			}
			//output result to user
			alert ("Quick Pick Result: " + QuickPick[0] + "," + QuickPick[1] + "," + QuickPick[2] + "," +
										   QuickPick[3] + "," + QuickPick[4] + "," + QuickPick[5] + "," + QuickPick[6]);
		} else {
			alert ("There are less than 6 entries, can't perform Quick Pick!");
		}
  }
  document.getElementById('fileinput').addEventListener('change', readSingleFile, false);
</script>

<button type="button" onclick="quickpick()">Quick Pick (7 numbers)</button>