JavaScript - Auction Timer Help
Hi everyone,
I've had a mess around with java at college and can get my head around code pretty easily but I cant seem to fnid out how to get a Javascript timer to work. The timer is like the one of Swoopo where it counts down to zero. When a user places a bid it should add on time such as 10 seconds. First of all what would be the best way of running a timer? A cron-job? Next problem is adding the time and getting it to update in everyones browser I have checked other posts on here but the posters seem to know the basics of my problems but Im not sure I do. any help would be appreciated Similar TutorialsI'm trying to create an online auction site, most of the pages are complete. I decided to start working on the functionality for the bidding page and did a rough sketch of what would be taking place on this page. Sadly I am a total newbie to JS and I have no idea how to accomplish what I wish to get done. Any help would be greatly appreciated. Here's my logic thus far (this would all occur when a user clicks on the 'Bid' button' : next_bid = current_bid + bid_increment If bid_amt < next_bid Error msg "Your bid MUST be greater than or equal to the next bid amount " + next_bid " ." Else { Msg "Are you sure you want to bid " + bid_amt " ?" If selected = YES If current_time > end_time auct_status = Closed Update tbl_auction {auction_status} Msg "Sorry, this auction is closed." Else current_bid = bid_amt bid_time = current time Insert into tbl_bid {bid_amt, bid_time, bid_date, username} Update auction {current_bid} Msg "Bid successful" End If End If End If NB. I am using Mysql for my database and my pages are all php. How could I lock an "Enter" link on an intro page with a 30 second timer that is displayed on the bottom of the page and disables the "Enter" link so that visitors have to wait 30 seconds to read the rules/announcements before entering?
I'm trying to build a time but it isn't displaying on screen Code: <html> <head> <script type="text/javascript"> function StartCounting(){ setInterval("DoCounting()", 1000) } function DoCounting(){ var obj =getElementbyId('countingtext'); obj.innerHTML = '' + Counter; Counter++; if( Counter > 10) { Counter = 0; document.writeln("Timer Reset"); } } </script> </head> <body onload= "StartCounting()"> Here it is:<span id="countingtext"></span> </body> </html> Hi I am working on a chat application and am a bit stuck...In the database I have a field status which is set 1 for online and 0 for offline (PHP/MySQL)(at time of logging in/out), this shows the users status on a webpage. What I need is to know if there is a way I can set a timer so that if the user has been inactive for X amount of time, the database is auto updated and user is offline (1 set to 0). Thanks for any help I recieve Alright, im trying for my project to make 1 div scroll through a list of pictures. I have it so that it starts when I click the button. Now what im trying to do is after I start the timer I have the button changing values to 'Pause' instead of 'Start' but I can't figure out how to code to make the timer pause when i click the button again. Code: HTML: <input id="timer" style="position: absolute; font-size: 50px; background-color: red; top:750px;left: 800px; height: 75px; width: 120px;" type="button" value="Start" onclick="myTimer = setInterval('picture()', 2000); document.getElementById('timer').value = 'Pause';"> Code: Javascript: function picture() { soccerImg.src = soccerPic[state]; state++; if(state == 35) { state = 0; } } hi guys, ive found the code for the perfect timer but cant for the life of me find the part to change the date to count down from. can anyone point it out? heres the code. <script language="JavaScript"> var countDownInterval=5; var countDownTime=countDownInterval+1; function countDown(){ countDownTime--; if (countDownTime <=0){ countDownTime=countDownInterval; clearTimeout(counter) window.location="file:///E:/................html"; return } if (document.all) //if IE 4+ document.all.countDownText.innerText = countDownTime+" "; else if (document.getElementById) //else if NS6+ document.getElementById("countDownText").innerHTML=countDownTime+" " else if (document.layers){ document.c_reload.document.c_reload2.document.write('WEDDING DAY IN... <b id="countDownText">'+countDownTime+'</b> minutes') </b> seconds') document.c_reload.document.c_reload2.document.close() } counter=setTimeout("countDown()", 1000); } function startit(){ if (document.all||document.getElementById) document.write('WEDDING DAY IN... <b id="countDownText">'+countDownTime+' </b> seconds') countDown() } if (document.all||document.getElementById) startit() else window.onload=startit setTimeout("location.href='http://www.wallpaperama.com'" , t) </script> Hi im new to javascript , i have a game when 2 or more players enter the game a button appears one of the players clicks the button the game starts, what i want to do is when 2 or more players join the game i want the game to start, and not start by using the button. here is the code for the button. PHP Code: if(($hand == '') && ($numplayers > 1)){ ?> var betbuttons = '<'; betbuttons += 'input type="button" name="Button" value="<? echo addslashes($BUTTON_START); ?>" class="betbuttons" onclick="push_action(\'start\');">'; Hi everyone, I need a countdown timer that will count down exactly from a time that i set. i want it to count in this format: hh:mm:ss. i need it for a online shop , at the main page there are few products for sell and i want each one of them to have its own countdown timer. in addition when it will get to 00:00:00 i want that it will automatically add like 5 hours and continue counting down.. P.s i dont know javascript.. thanks guys index.php Code: <a href="#" onClick="getTimer();return false;">Show Timer</a> <br /> <div id="test"></div> getTimer.js Code: function getTimer() { new Ajax.Request('filegoeshere', { onSuccess: function(req) {eval(req.responseText);}, onFailu function(){ alert('Something went wrong...') } }); } timer.php Code: <?php echo "$('test').innerHTML = '<form><input type=\"text\" name=\"timer\" id=\"timer\" size=\"8\" style=\"text-align: center;\" /></form>';"; ?> var seconds= 30 $('timer').value='30' function display() { seconds--; if (seconds<=-1){ seconds=30 } else $('timer').value=seconds; setTimeout("display()",1000) } display() Everything seems to work, but the once the timer is in the input box, after the request, it get's stuck on 29, and will not continue counting down, and I can't seem to get it to work. I am using ProtoType with this, and I did just take that little part out of the index.php file, since that is all that is needed from that file. I am making a website and the page is oriented around a countdown system. If the timer ever reaches 0, the whole thing will stop. Below are the specifics: I need a countdown timer that runs from 30 seconds to 0 seconds. If the timer is at 0 seconds, the script runs php code #1 (which makes the timer stop and if any user refreshes the page, it will still stay at zero). There is also two buttons. If user clicks on button #1, the timer will get reset to 30 seconds remaining. Then the script will run the php code #2 (which allows the timer to begin counting down again from 30 seconds). If user clicks on button #2, the timer will get reset to 5 seconds remaining and same thing follows as the first button. And obviously the timer should show the same number (seconds remaining) for all the users on the website! Thank You Hi All, I am trying to set up a countdown function that will be called on the click of a button. Function is below Code: function countDown(sec, min) { sec--; if (sec == -01) { sec = 59; min = min - 1; } else { min = min; } if (sec<=9) { sec = "0" + sec; } time = (min<=9 ? "0" + min : min) + " min and " + sec + " sec "; if (document.getElementById) { theTime.innerHTML = time; } SD=window.setTimeout("countDown();", 1000); if (min == '00' && sec == '00') { sec = "00"; window.clearTimeout(SD); } } function addLoadEvent(func) { var oldonload = window.onload; if (typeof window.onload != 'function') { window.onload = func; } else { window.onload = function() { if (oldonload) { oldonload(); } func(); } } } addLoadEvent(function() { }); However I get an error after one second. Script can be found here - http://www.jivalot.co.uk/m.php Can anyone help? Kind regards, Slate hi , im newbie here and need some help from all the guru here , can some 1 help me out with iframe , i want an iframe can do auto reload on list sites after specific time , example after 10 seconds ifram will open google.com and after 10 seconds again iframe will reload yahoo.com and so on. please some one help me , i had try to search on google and others but still can find it , i apreciate all the help thank you Hi people, Im really stuck, I have a script I want to load when my page opens, I can et it to do this fine, but I want to be able to input a delay time, any time I want. So my page loads, 1,2,3,4,5 then my script kicks in. I have searched hi and low, but my understanding with JS is very basic, but I am willing myself to learn. Thank you very much in advance for your help. Bev Hi everyone I need a function which will record the amount of time that a window has been open for. Upon load, the function should start a timer, and upon close, the function should store the number of minutes and seconds to a field on the form called 'Time'. My concern with this is whether you can write to a DOM element upon closre of a window, or whether we loose that ability as soon as the close event happens? if you could help priovide ideas around doing this then I'd be very grateful Dom I am trying to make an image show then stop showing. I am trying to use: document.image.src This is the code. <HTML> <HEAD> <!-- BlackHole Pointer Display/Hide --> <script language="javascript"> <!-- function blkhlpntr() { document.images.src="http://www.proamrodeo.com/gif/menu/blackholepointer.gif; setTimeout('blkhlpntr()',5000) } //--> </script> </HEAD> <BODY onload="setTimeout('blkhlpntr()',5000)" BGCOLOR="#FFFFFF"> <!-- Black Hole Pointer --> <DIV id="blkhlpntr" STYLE="position:absolute; top:70px; left:840px; width:90px; border-width:0; visibility:visible; z-index:1"> <img src="http://www.proamrodeo.com/gif/menu/blackholepointer.gif" width="15" height="48"> </DIV> </BODY> </HTML> This should load two(2) of the images to test it anyway. I keep getting an error message that document.image.src is null. Please understand that i have looked through the different timers on the JavaScript section but did not find any that can do what i am looking for and i don't know programming to edit any of them. I would like to have a countdown timer on my website that will count down from 12:00:01 am server time and end at midnight again of the same day (the clock should count down a full 24 hours) then it will automatically reset itself and count down again each and every day starting from 1 second after midnight. The count down should display hours : minutes : seconds just like a digital watch. I would also like to it to go with the server time and not client computer time so it will only count down according to the server time. One more thing .... each day a new trivia question will be posted and ppl have 1 day to answer the trivia question for a chance to win something (that is why the script is counting down). Will the script be able to automatically load a new trivia each day at midnight as the timer resets or do i have to load the trivia manually? If im getting way out of my head here then lets forget this last part. If it can be done i will certainly appreciate the advice. hi, i am currently trying to write a javascript program; it would be for a library reservation system. this would be put on the computers with sessions from 15 minutes to 2 hours (in 15 minute chunks i.e, 15, 30, 45, 1 hour). this program would countdown the remaining time on their session, with pop-up messages appearing every so often. at the end of the session, the program will have to automatically log the user off. i am a student studying javascript, and haven't got any idea how to even start can anyone give me a helping hand to get me started. thanks Hi folks, I am in need of a functionality for a system where in there PHP mysql system having a table bid which has columns(bid_product, "createtime") basically if the user does not bid for the product within 20 hours the bid will close for this i need to display a timer which keeps counting till 20 + hours of the create time, After a long search for timers i finally found a .Js which would work just fine for static values within the .js script when i tried to pass values from my database the timer does not change on itself but each time i have to refresh to check the time left. Please have a look at the code and let me know what could be wrong testingtime.php Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Vott</title> <script type="text/javascript" src="js/testtime.js"></script> <style> p.timer{font-size:15px; color:#43C6DB; border: 2px solid #fc0;width: 100px; position: absolute; top: 350px; left: 375px;} </style> </head> <body> <table style="background-color: #CCC" width="100%" border="0" cellpadding="12"> <tr> <td width="78%"><h1>My Logo Image</h1></td> </tr> </table> <span class="bids"> <p class="timer"><b>bid Closes in :</br> <span id="timeleft"> <script>timeleft('<?php print($bid['createtime']); ?>')</script> </span></b></p></span></br></br> </body> </html> The Javascript code Code: var eventtext = "Left"; // text that appears next to the time left var endtext = "bids Closed!!"; // text that appears when the target has been reached function timeleft(mydate){ // Split timestamp into [ Y, M, D, h, m, s ] var t = mydate.split(/[- :]/); // Apply each element to the Date function var date = new Date(t[0], t[1]-1, t[2], t[3], t[4], t[5]); // -> Wed Jun 09 2010 13:12:01 GMT+0100 (GMT Daylight Time) var year = date.getYear(); // in what year will your target be reached? var month = date.getMonth(); // value between 0 and 11 (0=january,1=february,...,11=december) var day = date.getDate(); // between 1 and 31 var hour =date.getHours(); // between 0 and 24 var minute = date.getMinutes(); // between 0 and 60 var second = date.getSeconds(); // between 0 and 60 var end = new Date(year,month,day,hour,minute,second); end.setMinutes(end.getMinutes() + 50); var now = new Date(); if(now.getYear() < 1900) yr = now.getYear() + 1900; var sec = end.getSeconds() - now.getSeconds(); var min = end.getMinutes() - now.getMinutes(); var hr = end.getHours() - now.getHours(); var dy = end.getDate() - now.getDate(); var mnth = end.getMonth() - now.getMonth(); var yr = year - yr; var daysinmnth = 32 - new Date(now.getYear(),now.getMonth(), 32).getDate(); if(sec < 0){ sec = (sec+60)%60; min--; } if(min < 0){ min = (min+60)%60; hr--; } if(hr < 0){ hr = (hr+24)%24; dy--; } if(dy < 0){ dy = (dy+daysinmnth)%daysinmnth; mnth--; } if(mnth < 0){ mnth = (mnth+12)%12; yr--; } var sectext = " Seconds "; var mintext = " Minutes, and "; var hrtext = " Hours, "; var dytext = " Days, "; var mnthtext = " Months, "; var yrtext = " Years, "; if (yr == 1) yrtext = " Year, "; if (mnth == 1) mnthtext = " Month, "; if (dy == 1) dytext = " Day, "; if (hr == 1) hrtext = " Hour, "; if (min == 1) mintext = " Minute, and "; if (sec == 1) sectext = " second "; if(now >= end){ document.getElementById("timeleft").innerHTML = endtext; clearTimeout(timerID); } else{ //alert(now.getHours()+1); document.getElementById("timeleft").innerHTML =min + ":" + sec; //document.getElementById("timeleft").innerHTML = dy + dytext + hr + ":" + min + ":" + sec; } timerID = setTimeout("timeleft()", 1000); } window.onload = timeleft; |