JavaScript - Js Help Needed (auction Site)
I'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. Similar TutorialsHi everyone, im no expert in coding but i manage to get this bit of code together using some free source stuff and put in the links to my images ect, the problem now is i need each picture to be different sizes and each one to have a clickable link but i am completely stumped heres the code Code: <html> <head> <script type="text/javascript"> <!-- var image1=new Image() image1.src="http://gohelp.org.uk/wp-content/uploads/2011/05/Charity-Rallies-World.png" var image2=new Image() image2.src="http://gohelp.org.uk/wp-content/uploads/2011/05/ROTW-logo.jpg" var image3=new Image() image3.src="http://gohelp.org.uk/wp-content/uploads/2011/05/Mongolia-Charity-Rally-Logo-Transparent.png" //--> </script> </head> <body> <center><img src="http://gohelp.org.uk/wp-content/uploads/2011/05/Charity-Rallies-World.png" name="slide" width="150" height="68" /></center> <script> <!-- //variable that will increment through the images var step=1 function slideit(){ //if browser does not support the image object, exit. if (!document.images) return document.images.slide.src=eval("image"+step+".src") if (step<3) step++ else step=1 //call function "slideit()" every 2.5 seconds setTimeout("slideit()",2500) } slideit() //--> </script> </body> </html> 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 I'l not good in Javascript and I can't find anything about what I want.. . On a sports website there is a table with our ranking and results. On this site the content is changed weekly, but it stays in the same tables.. . Is it possible to make a javascript to get those tables and put them on my own website so the content will change on my site when the content is changed on the sports site? Please help me, it would save me lot of time.. . THx Hi all, I'm a new member of this forum. I need help. My validation code checks for errors while filling out a permission form. If any of the fields are invalid it alerts a javascript box. But it disappears only after 2 mouse clicks. Can anyone help me out? Thank you. prik Hello! I am currently having some troubles finishing my website. www.djbobambo.com. I would like the music to play on every html page but the problem is that when i change a pages the music resets and begins from the beginning. I would like it to continue so when you change from page to page the music keeps playing. Any ideas? Thanks! This is the code i use: Code: <img id="music" onclick="musicfunc()" src="images/buttons/on.png" width="195" height="20" style="float: center; padding-right: 50px; padding-top: 58px;"> <OBJECT id="MediaPlayer" width="1" height="1" style="position:absolute; left:0;top:0;" CLASSID="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" type="application/x-oleobject"> <PARAM name="URL" value="home.mp3"> <PARAM name="AutoStart" value="True"> <PARAM name="PlayCount" value="9999"> </OBJECT> <script type="text/javascript"> var musicstat = "1";function musicfunc(){if(musicstat == "0"){document.getElementById ('music').src="images/buttons/on.png";musicstat = "1";document.getElementById("MediaPlayer").setAttribute("URL", "home.mp3");}else if(musicstat == "1"){document.getElementById ('music').src="images/buttons/off.png";musicstat = "0";document.getElementById("MediaPlayer").setAttribute("URL", "");}} </script> Hello guys i really need your help please. i need a code that when a button or image is clicked then a div's width and height are changed. Ive managed to get a few codes that does this, but the real problem is that, the contents of the div is an embedded flash file and i thought that by setting the flash width and height to 100% then the flash would fit to the new size of the div, but it just didnt work. I need a code that when a button is clicked then the div's and the flash's width and height are changed. please have a look at the temp website (http://latinunit.net/temp/ , you will understand where im coming from. on the right hand side i have a flash chat in a div , div is controled by a script that allows it to follow the scrollers up and down. My goal is to add a little button in the same div that says expand or maximise so when clicked the the div expands aswell as the flash file. i have spent 2 days on this little issue i just cant make it work, so please anyone can help me. Hi everyone, Im have a problem here with having a mouseover hilight effect on my table. Can anyone help ? Im not great at js. PHP Code: if($i%2 == 0){$rcolor='#313131';}else{$rcolor='#212121';} $sql=mysql_query("SELECT * FROM ranks_memberxp WHERE xp <=$mem[points] ORDER BY xp DESC LIMIT 1"); $rank=mysql_fetch_assoc($sql); $sql=mysql_query("SELECT color FROM member_groups WHERE id=$mem[gid]"); $mem_color=mysql_result($sql,0); $out[body].=" <tr style='background-color:$rcolor' height='24' > <td valign='center' width='2%' align='center' background='$config[cellbgx]'><font color='white' size='3'> $i "; if($xp2[xperience_lastupdate] >= $xp2[xperience]){ $arrowicon=$out[body].="<img src='./images/rank_up.gif' border='0'>"; } else if($xp2[xperience_lastupdate] <= $xp2[xperience]){ $arrowicon=$out[body].="<img src='./images/rank_down.gif' border='0'>"; } else{ $arrowicon=""; } $out[body].=" </font></td> <td valign='center' width='7%' align='center'><img src='./images/flags/{$mem[country]}_small.gif' border='0' /></td> <td valign='center' width='7%' align='left' background='$config[cellbgx]'><a href='./profile.php?account=$mem[id]'><b><span style='color:$mem_color' size='3'>$mem[name]</span></b></a></td> <td valign='center' width='7%' align='center' background='$config[cellbgx]'><img src='$rank[image]' height='15px' width='15px' title='$rank[name]'/></td> <td valign='center' width='7%' align='center'>$pmerleague $pmerforum</td> <td valign='center' width='7%' align='center'><a href='aim:goim?screenname=$mem[aim]&message=Hello, are you there?'><img border='0' align='absmiddle' src='http://360IcoNs.com/images/aim.gif'></a></td> <td class='tag' valign='center' width='19%' background='http://www.360icons.com/theme/dark-grunge/images/box.png' style=' padding-left:130px;' align='center'>$mem[xbl]</td> <td valign='center' width='7%' align='center'><b>$mem[points]</b></td> <td valign='center' width='8%' align='center'>$online</td> <td valign='center' width='8%' align='center'>$mem[Joined]</td> </tr></text>"; CAN SOMEONE TRY EDIT THAT TO GET IT TO WORK ? I just cant get it.... Hello all, I'm nick3d, from the UK. I'm new to this forum... Anyway... I am struggling with a project, basically what I want is. I want a slide in menu bar to the left of my screen, which is also a floating menu, so it follows my page when scrolled up and down, also, in the menu on the left I want the links to be like this UserCP FAQ Calender etc... Then once link clicked I want this to happen UserCP Change View Edit FAQ Calender, etc. so tabs can be opened, are there any available scripts out there which does all this?? Or could any one point me in the right direction? Hello. I want to display some text in some part of website when user "rolls over" an image. How can I make it possible? Text position must be totally flexible. (not over image) I have a script that works good, but it says undefined underneath, this must mean an error. But I cant work out how to get rid of it. This is the html it is a transistional XHTML doc type. Code: <div id="slidedom"> <script type="text/javascript" src="js-files/slider.js"></div></script> Then I have the js file which I will have to post all of as I am not sure of the error bit. Code: var variableslide=new Array() //variableslide[x]=["path to image", "OPTIONAL link for image", "OPTIONAL text description (supports HTML tags)"] variableslide[0]=['images/sign-1.gif'] variableslide[1]=['images/sign-3.gif'] variableslide[2]=['images/sign-4.gif'] //configure the below 3 variables to set the dimension/background color of the slideshow var slidewidth='188px' //set to width of LARGEST image in your slideshow var slideheight='60px' //set to height of LARGEST iamge in your slideshow, plus any text description var slidebgcolor='#FFF' //configure the below variable to determine the delay between image rotations (in miliseconds) var slidedelay=3000 ////Do not edit pass this line//////////////// var ie=document.all var dom=document.getElementById for (i=0;i<variableslide.length;i++){ var cacheimage=new Image() cacheimage.src=variableslide[i][0] } var currentslide=0 function rotateimages(){ contentcontainer='<center>' if (variableslide[currentslide][1]!="") contentcontainer+='<a href="'+variableslide[currentslide][1]+'">' contentcontainer+='<img src="'+variableslide[currentslide][0]+'" border="0" vspace="3">' if (variableslide[currentslide][1]!="") contentcontainer+='</a>' contentcontainer+='</center>' if (variableslide[currentslide][2]!="") contentcontainer+=variableslide[currentslide][2] if (document.layers){ crossrotateobj.document.write(contentcontainer) crossrotateobj.document.close() } else if (ie||dom) crossrotateobj.innerHTML=contentcontainer if (currentslide==variableslide.length-1) currentslide=0 else currentslide++ setTimeout("rotateimages()",slidedelay) } if (ie||dom) document.write('<div id="slidedom" style="width:'+slidewidth+';height:'+slideheight+'; background-color:'+slidebgcolor+'"></div>') function start_slider(){ crossrotateobj=dom? document.getElementById("slidedom") : ie? document.all.slidedom : document.slidensmain.document.slidenssub if (document.layers) document.slidensmain.visibility="show" rotateimages() } if (ie||dom) start_slider() else if (document.layers) window.onload=start_slider I have taken out the credit, as I have changed it a bit, but will reinstate it later on. All I really need to know is how to define it in the XHTML maybe. Can anyone help? A single letter is taken from each word in the sentence. Unlike before, either the first or last letter is taken. The letter taken is decided by which of the first or last is "greater" (e.g. "b" > "a", "c" > "b", etc.) Here are some examples based on the above rules: "hello" translates to "o" because "o" is greater than "h". "goodbye" translates to "g" because "g" is greater than "e". Full sentence example: "wazdee apple love bic nooo more end" This sentence will decrypt to "welcome". Complete the decryptB function so that it decrypts messages with the new scheme. Here are some examples: var decryptB = function(message) { // Your code here } var result1 = decryptB("wazdee apple love bic nooo more end") console.log(result1) // This should be "welcome" var result2 = decryptB("bria loud fuzu antidote") console.log(result2) // This should be "blue" Reply With Quote 01-20-2015, 09:41 PM #2 Old Pedant View Profile View Forum Posts Supreme Master coder! Join Date Feb 2009 Posts 28,310 Thanks 82 Thanked 4,754 Times in 4,716 Posts See the page http://www.codingforums.com/rules.htm See rule 1.5 We helped you way way too much the last time you asked the first variant of this homework problem. This is really a very simple variation on that. And you don't even include the final version of the code you used last time, so somebody who didn't see the last answers would have to start all over again. Not very friendly to potential responders. What have you *TRIED*? If you came running here without even trying to solve this, shame on you. At least show what you have tried and explain what results you get and, if you can, what you think is going wrong. By the way: How is the user supposed to output an "a" character? You need an answer to that question, methinks. I'm working very hard to create a dynamic web-site for use in the education sector using server-side php/MySQL and client-side HTML with javascript. I have a logon page (index.php) which looks to see if the cookie 'mylogon' is set with the value 'Again'. This cookie is set when the PHP element on the server detects an invalid username/password combination. If so I have a javascript function (see below) call from the HTML <body onload="check_invalid_user()"> I know that the function Get_Cookie is working ok and that the javascript variable 'again' has the value 'Again' in it and has a length of 5. The alert function is not executed though. function check_invalid_user() { again = Get_Cookie('mylogon'); // document.write(again); // document.write(again.length); If (again == 'Again') { alert("User-id and/or password incorrect -- Please re-enter"); } } ============= Any help would be appreciated Many thanks in advance. (Yeah you guessed it I'm new and raw to this stuff. I have been trying for hours to do the following: - Change the background of a div by clicking a link from another div tag. - It also needs to change back when clicked again. I know there are alot of experienced coders out there and I'm eager to learn... help would be appreciated! Hi All, Im a total novice with coding other than html/css. I have a video xml which, in which i need a new feature, could you help me with that? Basically my video is being entered with a time of it - for example 30sec. I have start and end trackers firing for the video but now i want to add impression trackers at 25%, 50%, 75%. I managed to do it using specifying seconds for the calls, but it becomes a pain to recalculate seconds for every video. Any ideas I could follow? Thanks, AD Hi... I'm still new to jQuery, and even newer to javascript, and need some help please. The page I'm working on: http://www.stereofx.net/test/itrain jQuery Code I have written: http://www.stereofx.net/test/itrain/js/animation.js This page shows 4 icons, if you hover over 1 of them and click it the arrow slides down and a box associated with that category appears and the clouds move too. Problem: If you click another box the previous animated arrow stays where it is, and I need it to move back or, even better, reverse it to where it was. It would also be nice to have a 1 or 2 second delay before the clouds start moving after the click triggers the animations. Thanks in advance. Okay, Im hoping people good with Javascript read this because I need help! Theres several redirectes required, but if it could be 1 script that I could put one 1 html page, that would be amazing (if it is possible). I need the site to: 1. Upon going to site, determine if it is a mobile browser. If so, send visitors to mobile site automatically. If not then contninue to step 2. 2. Verify that users can view Flash. If yes check connection speed: A. Send above 60kbits/sec to flash site B. If less send users to html site. 3. For those users that are left, (they can't view flash, and are not using a phone), send them to the html site. I have bolded the 3 version of the site I have. Please include all code needed, as Im a noob at Javascript programming (explanations on what the lines do would be nice). Thanks Chris Theres several redirects probably required, but if it could be 1 script that I could put one 1 html page, that would be amazing (if it is possible). I need the site to: 1. Upon going to site, determine if it is a mobile browser. If so, send visitors to mobile site automatically. If not then continue to step 2. 2. Verify that users can view Flash. If yes check connection speed: A. Send above 60kbits/sec to flash site B. If less send users to html site. If they cannot view Flash, head to step 3 3. For those users that are left, (they can't view flash, and are not using a phone), send them to the html site. I have bolded the 3 versions of the site I have. Please include all code needed, as Im a noob at Javascript programming (explanations on what the lines do would be nice). Thanks Chris Not having a good day...plz help make it WAY better..... Hi parent.document.getElementById("Table").onclick(); The above script works fine in firefox but in internet explorer it doesn't work. When i tried in IE, the session gets killed. HELP me out pls.... Can anyone tell WHY? Thanks in advance. So, this code does what it's supposed to do (check an array for dis-allowed input and supply the appropriate keyboard for touchscreen users) but I was worried that maybe this wasn't the most succinct logic... Code: kb=2,kp=1; for(var i in Setup.DisAllowed){ if(Setup.DisAllowed[i]==0) kp=0; if(Setup.DisAllowed[i]==1||Setup.DisAllowed[i]==2) kb--; } if(kp)APP.Module('KeyPad'); if(kb)APP.Module('KeyBoard'); if(kp&&kb)APP.Module('AlphaNumeric'); Keeping in mind the Setup.DisAllowed array and APP.Module method are fixed in stone, would anyone recommend a better way to use the array to select the necessary keyboard? Hi I'm trying to download the security image from this site (at the bottom): http://pacesalsa.promotionexpert.com...2/register.jsp However, every time one refreshes the image, the image changes (obviously). So, I'm trying to figure out how to download the current image on the page to a jpg or png (or any image file type). Could someone please tell me how to do this? Thanks. |