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10.08.2008 at 11:30AM PDT, ID: 23798503
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8.6

1 Problem with Java Script that changes prices using radio buttons

Asked by Doomtomb in JavaScript, Scripting Languages

Tags:

Examples are more powerful than words. Here is my live test page for this script:
http://buildmethebest.com/intel_customdesktop.php

I am using this script to allow customers to build a custom computer. There are certain components like right now I have two: Case and Power Supply. The Case function works nicely, no problems.

On the Power supply section, I am having problems. By default, the 500W option is selected, which is correct. Also, the first Option on the 500W is selected which is correct.

The problem is where it calculates the difference in price between the different options for a 500W power supply. It only calculates the difference between the current choice and the first choice. I want it to do this for all of the options.

A perfect working example is: www.cyberpowerpc.com in how they do their power supply section.

Also, the total price does not update.

I'll include the javascripts and HTML. THANK YOUStart Free Trial 
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JAVASCRIPT items.js (used to calculate prices)
 
  // prices related variables
  nBasePrice = 140;
  nCurrentPrice = 140;
  nItemPriceExtra = new Array();
  nItemPriceExtra['1'] = 140;
  nItemPriceExtra['2'] = 160;
  nItemPriceExtra['3'] = 80;
  nItemPriceExtra['4'] = 75;
  nItemPriceExtra['5'] = 95;
  nItemPriceExtra['6'] = 100;
  nItemPriceExtra['7'] = 100;
  nItemPriceExtra['8'] = 90;
  nItemPriceExtra['9'] = 55;
  nItemPriceExtra['10'] = 100;
  nItemPriceExtra['11'] = 300;
  nItemPriceExtra['12'] = 100;
  nItemPriceExtra['13'] = 135;
  nItemPriceExtra['14'] = 140;
  nItemPriceExtra['15'] = 125;
  nItemPriceExtra['16'] = 110;
  nItemPriceExtra['17'] = 90;
  nItemPriceExtra['18'] = 95;
  nItemPriceExtra['19'] = 160;
  nItemPriceExtra['20'] = 215;
  nItemPriceExtra['21'] = 200;
  nItemPriceExtra['22'] = 180;
  nItemPriceExtra['23'] = 220;
  nItemPriceExtra['24'] = 270;
  nItemPriceExtra['25'] = 200;
  nItemPriceExtra['26'] = 230;
  nItemPriceExtra['27'] = 450;
  nItemPriceExtra['28'] = 180;
  nItemPriceExtra['29'] = 285;
  nItemPriceExtra['30'] = 220;
  nItemPriceExtra['31'] = 100;
  nItemPriceExtra['32'] = 65;
  nItemPriceExtra['33'] = 70;
  nItemPriceExtra['34'] = 90;
  nItemPriceExtra['35'] = 75;
  
  // current situation
  nSelected = new Array();
  nSelected['1000'] = '14';
  nSelected['1001'] = '31';
 
 
  // updates a layer text
  function SetLayerText(sLayerId, sText) {
    document.getElementById(sLayerId).innerHTML = sText
  }
 
  // function that handles changes
  function onClickItem(nCatId, nItemId) {
    // add price info to previously selected item
    nPrice = nItemPriceExtra[nSelected[nCatId]] - nItemPriceExtra[nItemId];
    sPrice = " <b>[ " + ((nPrice>=0)?'+':'') + nPrice + " ]</b>";
    SetLayerText("PriceLabel_" + nCatId + "_" + nSelected[nCatId], sPrice);
 
	 for(i=1;i<nItemPriceExtra.length;i++){
	    nPrice1 = nItemPriceExtra[i] - nItemPriceExtra[nItemId];
	    sPrice = " <b>[ " + ((nPrice1>=0)?'+':'') + nPrice1 + " ]</b>";
	    SetLayerText("PriceLabel_" + nCatId + "_" + i, sPrice);
	 }
 
    // remove price info from newly selected item
    SetLayerText("PriceLabel_" + nCatId + "_" + nItemId, "");
 
    // update total price
    nCurrentPrice -= nPrice;
    sPrice = "<b>[ " + ((nCurrentPrice>=0)?'':'-') + nCurrentPrice + " ] </b>";
    SetLayerText("TotalPriceLabel", sPrice);
 
    // update selected items
    nSelected[nCatId] = nItemId;
  }
 
JAVASCRIPT group.js (used to group the radio buttons in the power supply section)
        function Reset(SelectedGroup) {
            var RadioGroup1 = document.getElementById("RadioGroup1");
            for (var i = 0; i < RadioGroup1.childNodes.length; i++) {
 
                if (SelectedGroup == RadioGroup1.childNodes[i]) {
                    for (var ii = 0; ii < RadioGroup1.childNodes[i].childNodes.length; ii++) {
                        if (RadioGroup1.childNodes[i].childNodes[ii].tagName == "DIV") {
                            RadioGroup1.childNodes[i].childNodes[ii].style.display = "block";
                            RadioGroup1.childNodes[i].childNodes[ii].style.visibility = "visible";
                        }
                    }
 
                } else {
                    if (RadioGroup1.childNodes[i].nodeType == 1) {
                        for (var ii = 0; ii < RadioGroup1.childNodes[i].childNodes.length; ii++) {
                            if (RadioGroup1.childNodes[i].childNodes[ii].tagName == "DIV") {
                                RadioGroup1.childNodes[i].childNodes[ii].style.display = "none";
                                RadioGroup1.childNodes[i].childNodes[ii].style.visibility = "hidden";
                            }
                        }
                    }
                }
            }
 
 
            var RadioGroup2 = document.getElementById("RadioGroup2");
            for (var i = 0; i < RadioGroup2.childNodes.length; i++) {
 
                if (SelectedGroup == RadioGroup2.childNodes[i]) {
                    for (var ii = 0; ii < RadioGroup2.childNodes[i].childNodes.length; ii++) {
                        if (RadioGroup2.childNodes[i].childNodes[ii].tagName == "DIV") {
                            RadioGroup2.childNodes[i].childNodes[ii].style.display = "block";
                            RadioGroup2.childNodes[i].childNodes[ii].style.visibility = "visible";
                        }
                    }
 
                } else {
                    if (RadioGroup2.childNodes[i].nodeType == 1) {
                        for (var ii = 0; ii < RadioGroup2.childNodes[i].childNodes.length; ii++) {
                            if (RadioGroup2.childNodes[i].childNodes[ii].tagName == "DIV") {
                                RadioGroup2.childNodes[i].childNodes[ii].style.display = "none";
                                RadioGroup2.childNodes[i].childNodes[ii].style.visibility = "hidden";
                            }
                        }
                    }
                }
            }
        }
 
THE HTML
 
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 
<title>Build Me The Best: Custom Computers</title>
 
<script type="text/javascript" src="scripts/tabber.js"></script> 
<script type="text/javascript" src="scripts/items.js"></script> 
<script type="text/javascript" src="scripts/group.js"></script> 
 
<link href="styles/buildmethebest.css" type="text/css" rel="stylesheet">
<link rel="stylesheet" href="styles/tabber.css" TYPE="text/css" MEDIA="screen">
<link href="images/favicon.ico" type="image/x-icon" rel="shortcut icon"> 
 
 
<script type="text/javascript"> 
document.write('<style type="text/css">.tabber{display:none;}<\/style>');
</script> 
</head>
<body>
 
<div class="tabber">
 
	<div class="tabbertab" title="1. Hardware & Components">
		<center>
		<p><table border="0" cellspacing="0" cellpadding="0" style="font-size: 11px; font-family: Verdana; border: 1px solid black;" width="90%">
			<tr style="border: 1px solid black;">
				<td height="20" style="background-color: #BBBBBB;">&nbsp;&nbsp;<font size="4"><b>Case</b></font>
				</td>
				<td height="20" align="right" style="background-color: #BBBBBB;">
					<a href=javascript:OpenHelpMeChooseWindow('helpmechoose-case.html')>Help me choose</a>&nbsp;&nbsp;
				</td>
			</tr>
			<tr>
				<td align="center">
					<img id="image_case" src="images/nzxt_tempest.jpg" style="border: 1px solid black;">
				</td>
				<td align="left">
					<br>
					<form method="POST" action="index.php">
						<u>Mid-towers:</u><br>
                        <input type="Radio" name='InputField_1000' value='1' onclick="onClickItem('1000', '1'); document.getElementById('image_case').src='images/antec_900.gif'">
                        Antec 900<span id='PriceLabel_1000_1'> <b>[ +0 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='2' onclick="onClickItem('1000', '2'); document.getElementById('image_case').src='images/antec_p182.jpg'">
                        Antec P182<span id='PriceLabel_1000_2'> <b>[ +20 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='3' onclick="onClickItem('1000', '3'); document.getElementById('image_case').src='images/apevia_x-cruiser.jpg'">
                        Apevia X-Cruiser<span id='PriceLabel_1000_3'> <b>[ -60 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='4' onclick="onClickItem('1000', '4'); document.getElementById('image_case').src='images/apevia_x-plorer.jpg'">
                        Apevia X-plorer<span id='PriceLabel_1000_4'> <b>[ -65 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='5' onclick="onClickItem('1000', '5'); document.getElementById('image_case').src='images/apevia_x-telstar_jr.jpg'">
                        Apevia X-Telstar Jr. G-Type<span id='PriceLabel_1000_5'> <b>[ -45 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='6' onclick="onClickItem('1000', '6'); document.getElementById('image_case').src='images/apevia_x-sniper.jpg'">
                        Apevia X-Sniper<span id='PriceLabel_1000_6'> <b>[ -40 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='7' onclick="onClickItem('1000', '7'); document.getElementById('image_case').src='images/apevia_x-jupiter_jr.jpg'">
                        Apevia X-Jupiter Jr. G-Type<span id='PriceLabel_1000_7'> <b>[ -40 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='8' onclick="onClickItem('1000', '8'); document.getElementById('image_case').src='images/cooler master_690.jpg'">
                        Cooler Master 690<span id='PriceLabel_1000_8'> <b>[ -50 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='9' onclick="onClickItem('1000', '9'); document.getElementById('image_case').src='images/cooler master_elite.jpg'">
                        Cooler Master Elite<span id='PriceLabel_1000_9'> <b>[ -85 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='10' onclick="onClickItem('1000', '10'); document.getElementById('image_case').src='images/cooler master_mystique.jpg'">
                        Cooler Master Mystique<span id='PriceLabel_1000_10'> <b>[ -40 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='11' onclick="onClickItem('1000', '11'); document.getElementById('image_case').src='images/lian-li_pc-v1100b plus II.gif'">
                        Lian-Li PC-V1100B Plus II<span id='PriceLabel_1000_11'> <b>[ +160 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='12' onclick="onClickItem('1000', '12'); document.getElementById('image_case').src='images/nzxt_apollo.jpg'">
                        NZXT Apollo<span id='PriceLabel_1000_12'> <b>[ -40 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='13' onclick="onClickItem('1000', '13'); document.getElementById('image_case').src='images/nzxt_lexa.jpg'">
                        NZXT Lexa<span id='PriceLabel_1000_13'> <b>[ -5 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='14' onclick="onClickItem('1000', '14'); document.getElementById('image_case').src='images/nzxt_tempest.jpg'" Checked>
                        NZXT Tempest <span id='PriceLabel_1000_14'></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='15' onclick="onClickItem('1000', '15'); document.getElementById('image_case').src='images/nzxt_guardian.gif'">
                        NZXT Guardian 921<span id='PriceLabel_1000_15'> <b>[ -15 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='16' onclick="onClickItem('1000', '16'); document.getElementById('image_case').src='images/nzxt_hush.jpg'">
                        NZXT Hush<span id='PriceLabel_1000_16'> <b>[ -30 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='17' onclick="onClickItem('1000', '17'); document.getElementById('image_case').src='images/raidmax_sagitta 2.jpg'">
                        Raidmax Sagitta 2<span id='PriceLabel_1000_17'> <b>[ -50 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='18' onclick="onClickItem('1000', '18'); document.getElementById('image_case').src='images/raidmax_aztec.jpg'">
                        Raidmax Aztec<span id='PriceLabel_1000_18'> <b>[ -45 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='19' onclick="onClickItem('1000', '19'); document.getElementById('image_case').src='images/thermaltake_armor+ mid-tower.gif'">
                        Thermaltake Armor+<span id='PriceLabel_1000_19'> <b>[ +20 ]</b></span><br>
                        <br>
						<u>Full-towers:</u><br>
						<input type="Radio" name='InputField_1000' value='20' onclick="onClickItem('1000', '20'); document.getElementById('image_case').src='images/antec_1200.jpg'">
                        Antec 1200<span id='PriceLabel_1000_20'> <b>[ +75 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='21' onclick="onClickItem('1000', '21'); document.getElementById('image_case').src='images/apevia_x-jupiter.jpg'">
                        Apevia X-Jupiter G-Type<span id='PriceLabel_1000_21'> <b>[ +60 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='22' onclick="onClickItem('1000', '22'); document.getElementById('image_case').src='images/apevia_x-telstar.jpg'">
                        Apevia X-Telstar<span id='PriceLabel_1000_22'> <b>[ +40 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='23' onclick="onClickItem('1000', '23'); document.getElementById('image_case').src='images/cooler master_cosmos 1000.jpg'">
                        Cooler Master Cosmos 1000<span id='PriceLabel_1000_23'> <b>[ +80 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='24' onclick="onClickItem('1000', '24'); document.getElementById('image_case').src='images/cooler master_cosmos s.jpg'">
                        Cooler Master Cosmos S<span id='PriceLabel_1000_24'> <b>[ +130 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='25' onclick="onClickItem('1000', '25'); document.getElementById('image_case').src='images/cooler master_haf932.jpg'">
                        Cooler Master HAF 932<span id='PriceLabel_1000_25'> <b>[ +60 ]</b></span><br>
						
						<input type="Radio" name='InputField_1000' value='26' onclick="onClickItem('1000', '26'); document.getElementById('image_case').src='images/cooler master_stacker 830 evolution.jpg'">
                        Cooler Master Stacker 830 Evolution<span id='PriceLabel_1000_26'> <b>[ +90 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='27' onclick="onClickItem('1000', '27'); document.getElementById('image_case').src='images/lian-li_pc-p80.jpg'">
                        Lian-Li PC-P80<span id='PriceLabel_1000_27'> <b>[ +310 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='28' onclick="onClickItem('1000', '28'); document.getElementById('image_case').src='images/nzxt_zero.jpg'">
                        NZXT Zero<span id='PriceLabel_1000_28'> <b>[ +40 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='29' onclick="onClickItem('1000', '29'); document.getElementById('image_case').src='images/thermaltake_xaser vi.jpg'">
                        Thermaltake Xaser VI w/ Side Window<span id='PriceLabel_1000_29'> <b>[ +145 ]</b></span><br>
                                        
                        <input type="Radio" name='InputField_1000' value='30' onclick="onClickItem('1000', '30'); document.getElementById('image_case').src='images/thermaltake_armor+ full-tower.jpg'">
                        Thermaltake Armor+<span id='PriceLabel_1000_30'> <b>[ +80 ]</b></span><br>
						
                        <hr>
                        Total Price : <span id='TotalPriceLabel'><b>[ 140 ]</b></span><br>
				</td>
			</tr>
		</table>
		<br><br>
		<table border="0" cellspacing="0" cellpadding="0" style="font-size: 11px; font-family: Verdana; border: 1px solid black;" width="90%">
			<tr style="border: 1px solid black;">
				<td height="20" style="background-color: #BBBBBB;">&nbsp;&nbsp;<font size="4"><b>Power Supply</b></font>
				</td>
				<td height="20" align="right" style="background-color: #BBBBBB;">
					<a href=javascript:OpenHelpMeChooseWindow('helpmechoose-case.html')>Help me choose</a>&nbsp;&nbsp;
				</td>
			</tr>
			<tr>
				<td align="center">
					<img id="image_case" src="images/nzxt_tempest.jpg" style="border: 1px solid black;">
				</td>
				<td align="left">
					<br>
<div id="RadioGroup1">
<div id="Group1">
<input type="radio" name="psu" id="gp1" onclick="Reset(this.parentNode); onClickItem('1001', '31');" Checked>500W
<div id="sub_gp1" style="visibility: visible; display: block;">
&nbsp;&nbsp;&nbsp;&nbsp;<input type="radio" name="sub500w" value='31' onclick="onClickItem('1001', '31');" Checked>[Modular] Antec Neo Power<span id='PriceLabel_1001_31'></span><br>
&nbsp;&nbsp;&nbsp;&nbsp;<input type="radio" name="sub500w" value='32' onclick="onClickItem('1001', '32');">Apevia Java<span id='PriceLabel_1001_32'> <b>[ -35 ]</b></span><br>
&nbsp;&nbsp;&nbsp;&nbsp;<input type="radio" name="sub500w" value='33' onclick="onClickItem('1001', '33');">Cooler Master eXtreme<span id='PriceLabel_1001_33'> <b>[ -30 ]</b></span><br>
&nbsp;&nbsp;&nbsp;&nbsp;<input type="radio" name="sub500w" value='34' onclick="onClickItem('1001', '34');">Silverstone ST50F<span id='PriceLabel_1001_34'> <b>[ -10 ]</b></span><br>
</div>
</div>
 
<div id="Group2">
<input type="radio" name="psu" id="gp2" onclick="Reset(this.parentNode); onClickItem('1001', '35');"">530W
<div id="sub_gp2" style="visibility: hidden; display: none;">
&nbsp;&nbsp;&nbsp;&nbsp;<input type="radio" name="sub530w" value='35' onclick="onClickItem('1001', '35');" Checked>[Modular] Raidmax Hybrid<span id='PriceLabel_1001_35'> <b>[ -25 ]</b></span><br>
</div>
</div>
                    
 
</div>		
                        <hr>
                        Total Price : <span id='TotalPriceLabel'><b>[ 140 ]</b></span><br>
                    </form>
				</td>
			</tr>
		</table>
		
		</form></p>
		</center>
	</div>
	
	<div class="tabbertab" title="2. Accessories & Software">
		<p>Build Page 2 Content</p>
	</div>
	
	<div class="tabbertab" title="3. Services">
		<p>Build Page 3 Content</p>
	</div>
	
</div>
[+][-]10.08.2008 at 02:05PM PDT, ID: 22673437

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About this solution

Zones: JavaScript, Scripting Languages
Tags: Java Script, HTML
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Solution Provided By: robacarp
Participating Experts: 1
Solution Grade: A
 
 
[+][-]10.08.2008 at 03:38PM PDT, ID: 22674190

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[+][-]10.09.2008 at 07:24AM PDT, ID: 22678679

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[+][-]10.09.2008 at 12:44PM PDT, ID: 22681743

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20080716-EE-VQP-32 - Hierarchy / EE_QW_2_20070628