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Javascript stopwatch start and stop button

Posted on 2011-03-04
1
481 Views
Last Modified: 2012-08-13
Hey guys i have some code im writing for a stop watch.

At the moment it starts by clicking start but when you click stop it turns it to 00:00:00.00 rather then dsplaying the time stopped

<div id="container">
			<ul id="controls">
                <asp:Button ID="start" runat="server" Text="Start" />
			
			    <asp:Button ID="Stop" runat="server" Text="Stop" />
			    </li>
			</ul>
			<h2 id="timer">00:00:00.00</h2>
						<ul id="splits">
				<li></li>
			</ul>
		</div>
		
		
		</div>

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Below is the javascript:
var $start = $('#start'),
$stop = $('#Stop'),
	startText = $start.text(),
	stopText = $start.attr('alternate'),
	$split = $('#split'),
	$reset = $('#reset'),
	$timer = $('#timer'),
	$splits = $('#splits'),
	/*
* I found this code on a few sites and am unsure of the original author.
* If you know please inform me so I can credit them here.
*
* 0 = start time
* 1 = end time
* 2 = state (stopped or counting)
* 3 = total elapsed time in ms
* 4 = timer (interval object)
* 5 = epoch (January 1, 1970)
* 6 = element (not used here, normally stores the DOM element to update with the time)
* 7 = split count
*/
	t = [0, 0, 0, 0, 0, 0, 0, 0],

	format = function (ms) {
	    var d = new Date(ms + t[5]).toString().replace(/.*(\d{2}:\d{2}:\d{2}).*/, '$1');
	    var x = String(ms % 1000);
	    while (x.length < 3) {
	        x = '0' + x;
	    }
	    d += '.' + x;
	    return d.substr(0, d.length - 1);
	},

	zero = function (num) {
	    if (parseInt(num) < 0) var neg = true;
	    if (Math.abs(parseInt(num)) < 10) {
	        num = '0' + Math.abs(num);
	    }
	    if (neg) num = '-' + num;
	    return num;
	},

	start = function () {
	    t[t[2]] = (+new Date()).valueOf();
	    t[2] = 1 - t[2];

	    if (t[2] == 0) {
	        clearInterval(t[4]);
	        t[3] += t[1] - t[0];

	        $start.text(startText);

	        t[7]++;
	        $splits.show();
	        $('<li><span>' + zero(t[7]) + '</span> ' + format(t[3]) + '</li>').appendTo($splits).slideDown('fast');
	        $splits.find('li').removeClass('first last');
	        $splits.find('li:first').addClass('first').end().find('li:last').addClass('last');

	        t[4] = t[1] = t[0] = 0;

	        display();
	    }
	    else {
	        $stop.text(stopText);
	        t[4] = setInterval(display, 43);
	    }

	    return false;
	},

	reset = function () {
	    if (t[2]) {
	        start();
	    }

	    t[4] = t[3] = t[2] = t[1] = t[0] = 0;

	    display();

	    $start.text(startText);
	    $splits.slideUp('fast', function () {
	        $splits.empty();
	    });

	    t[7] = 0;

	    return false;
	},

	display = function () {
	    if (t[2]) {
	        t[1] = (new Date()).valueOf();
	    }

	    $timer.text(format(t[3] + t[1] - t[0]));
	},

	split = function () {
	    if (t[2] !== 0) {
	        t[7]++;
	        $splits.show();
	        $('<li><span>' + zero(t[7]) + '</span> ' + format(t[3] + t[1] - t[0]) + '</li>').appendTo($splits).slideDown('fast');
	        $splits.find('li').removeClass('first last');
	        $splits.find('li:first').addClass('first').end().find('li:last').addClass('last');
	    }

	    return false;
	},

	load = function () {
	    t[5] = new Date(1970, 1, 1, 0, 0, 0, 0).valueOf();

	    display();
	};

	$(function () {

	    $splits.empty();

	    load();

	    $start.click(start);
	    $stop.click(stop);
	    $split.click(split);
	    $reset.click(reset);


	    // Assign classes to special items
	    $('#controls li:last').addClass('last');

	});

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Question by:runnerjp2005
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1 Comment
 
LVL 15

Accepted Solution

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SRigney earned 500 total points
ID: 35037083
I don't see your stop method in there that is called when you click stop.
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