This file is intended for Quick picking lottery 6/49 numbers theory test based on past results.<br/>
<br/>
Lottery past results file: <input type="file" id="fileinput" /> <br/>

<script type="text/javascript">
  var Entries = [];
  var EvenEntries = [];
  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;
	}
	for (var i = 0;i<EvenEntries.length;i++){
		swapIndex = Math.floor((Math.random() * EvenEntries.length));
		temp = EvenEntries[i];
		EvenEntries[i] = EvenEntries[swapIndex];
		EvenEntries[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 = [];
		EvenEntries = [];
        var lines = contents.split("\n");       //break file into lines
		var numberOfLines = lines.length;
		var valueOfEntry;
		for (var i = 0; i < numberOfLines ; i++ ){ //for each line, break line up into entries
			entries = lines[i].split(" ");
			numberOfEntries = entries.length;
			
			for (var j = 0; j < numberOfEntries; j++){
				if (isNumeric(entries[j])) {
					valueOfEntry = parseInt(entries[j]);
					if(typeof EvenEntries[valueOfEntry-1] == 'undefined') {
					//doesn't exist. add it in even entries
						EvenEntries[valueOfEntry-1] = valueOfEntry; // add it to index-1 (0 index)
					} else {
						//already exist in even distribution model, do nothing
					}
					Entries[Entries.length] = valueOfEntry;
				}
			}
		}
		alert ("File read." + "\n" + "Entries read: " + Entries.length + "\n" +
		        "Even entries: " + EvenEntries.length);
      }
      r.readAsText(f);
    } else { 
      alert("Failed to load file");
    }
  }
  function include(arr,obj) {
    return (arr.indexOf(obj) != -1);
  }
  function quickpick(){
		var Results = [];
		var EvenResults = [];
		var QuickPick = [];
		var selected = 1;
		var selectIndex = 0;
		var matches = 0;
		var quickPickMatchCount = 0;
		var evenPickMatchCount = 0;
		var z;
		if (Entries.length > 5){
		    //swapAllEntries();
			for (z=0;z<660000;z++){
				//swapAllEntries();
				for (var i=0;i<6;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
							}
						}
					}
				}
				//QuickPick.sort(function(a, b){return a-b});
				//swapAllEntries();
				
					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));
							Results[i] = Entries[selectIndex];
							for (var j=0;j<i;j++){ // checks all QuickPicks at index less than current index
								if (Results[i] == Results[j]){
									selected = 1; // indicates that the number is already selected and so we're stuck in the while loop
								}
							}
						}
					}
				//Results.sort(function(a, b){return a-b});
				//swapAllEntries();
				for (var i=0;i<6;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() * EvenEntries.length));
						EvenResults[i] = EvenEntries[selectIndex];
						for (var j=0;j<i;j++){ // checks all QuickPicks at index less than current index
							if (EvenResults[i] == EvenResults[j]){
								selected = 1; // indicates that the number is already selected and so we're stuck in the while loop
							}
						}
					}
				}

				matches = 0;
				if (include(EvenResults,Results[0])){ matches = matches + 1;}
				if (include(EvenResults,Results[1])){ matches = matches + 1;}
				if (include(EvenResults,Results[2])){ matches = matches + 1;}
				if (include(EvenResults,Results[3])){ matches = matches + 1;}
				if (include(EvenResults,Results[4])){ matches = matches + 1;}
				if (include(EvenResults,Results[5])){ matches = matches + 1;}
				
				if ((matches > 1) ||
                    ((matches == 5) && (include(EvenResults,Results[6]))) || //5 numbers + bonus
                    ((matches == 2) && (include(EvenResults,Results[6])))    //2 numbers + bonus
					) {evenPickMatchCount = evenPickMatchCount + 1;}
				//EvenResults.sort(function(a, b){return a-b});
				matches = 0;
				if (include(QuickPick,Results[0])){ matches = matches + 1;}
				if (include(QuickPick,Results[1])){ matches = matches + 1;}
				if (include(QuickPick,Results[2])){ matches = matches + 1;}
				if (include(QuickPick,Results[3])){ matches = matches + 1;}
				if (include(QuickPick,Results[4])){ matches = matches + 1;}
				if (include(QuickPick,Results[5])){ matches = matches + 1;}
				
				if ((matches > 1) ||
                    ((matches == 5) && (include(QuickPick,Results[6]))) || //5 numbers + bonus
                    ((matches == 2) && (include(QuickPick,Results[6])))    //2 numbers + bonus
					) {quickPickMatchCount = quickPickMatchCount + 1;}
				
			}
			
			alert ("quickPickMatchCount(using probability model): " + quickPickMatchCount + "\n" +
			       "evenPickMatchCount(using even distribution): " + evenPickMatchCount + "\n" +
				   "times drawn: " + z);
			//output result to user
			//alert ("Quick Pick Result: " + QuickPick[0] + "," + QuickPick[1] + "," + QuickPick[2] + "," +
			//							   QuickPick[3] + "," + QuickPick[4] + "," + QuickPick[5]);
		} 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 (6 numbers)</button>