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JavaScript - Getting Values Through Getelementbyclass Then Summing Them Up
I'm new to js and have been going crazy trying to get this to work. I need the script to pull the values in the class selected, then spit out the sum of them. It can't be that hard! This is what I have and it just won't run. I'm working in a intra environment, so I'm not too worried about cross-browser compatibility. Any help would be appreciated. Thank you.
<html> <head> <script> function findTheOddOnes() { var theOddOnes = document.getElementsByClassName("odd"); for(var i=0; i<theOddOnes.length; i++){ sum += theOddOnes[i].textContent; alert(sum); } } </script> </head> <body> <h1>getElementsByClassName Test</h1> <p class="odd">1000</p> <p>This is an even para.</p> <p class="odd">1000</p> <p>This one is not odd.</p> <form> <input type="button" value="Find the odd ones..." onclick="findTheOddOnes()"> </form> </body> </html> Similar TutorialsHello, I'm working on a project that involves extracting values from a series of select boxes and then working out the result. The select boxes contain the following: Code: <select name="select_Col1_Row1"> <option value="blue">Blue</option> <option value="green">Green</option> <option value="red>Red</option> </select> <select name="select_Col1_Row2"> <option value="blue" selected="selected">Blue</option> <option value="green">Green</option> <option value="red>Red</option> </select> <input type="text" name="RedSum"> <input type="text" name="BlueSum"> <input type="text" name="GreenSum"> </select> As you can see by my code, I'm early days at this and guessing the steps on the way. I tried using getElementsByTagName on the select and then on the option but had no luck with that. The code below does a wonderful job of returning blue for both select statements... Code: <script type="text/javascript">
function getElements()
{
var table = document.getElementById("x");
var x = table.getElementsByTagName("option");
for (var i = 0; i < x.length; i++) {
var status = x[i].getAttribute("selected");
alert(status);
if (status == "selected") {
var statushcap = x[i].getAttribute("id");
var statusvalue =x[i].getAttribute("value");
if (statusvalue == "blue") {
alert(statusvalue);
}
}
}
alert(x.length);
}
</script>
If someone could suggest some way to map the select tag and then extract its option value to being the user selected value, I'd most appreciate it. I can probably do the rest of it. Can you extract additional information from the id of the option that is selected as I'd like to sum additional information from the user's choice. Best, John The issue I am having is with my sumAll function: Code:
<script type="text/javascript">
/* <![CDATA[ */
function addNumbers()
{
a = parseInt(document.getElementById('txtFirst').value);
b = parseInt(document.getElementById('txtSecond').value);
c = parseInt(document.getElementById('txtThird').value);
d = parseInt(document.getElementById('txtFourth').value);
ansE = document.getElementById("Sum");
ansE.value = '$' + (a + b + c + d);
x = (a + b + c + d);
if ( x >= 100000) {
document.getElementById('Bonus').value = '$' + 1200; }
else if ( x > 50000 && x<100000) {
document.getElementById('Bonus').value = '$' + 800; }
else {
document.getElementById('Bonus').value = '$' + 0; }
if (document.getElementById('Blue').checked == true && document.getElementById('Gala').checked == true) {
document.getElementById('Committee').value = '$' + 800; }
else if (document.getElementById('Blue').checked == true && document.getElementById('Gala').checked == false) {
document.getElementById('Committee').value = '$' + 350; }
else if (document.getElementById('Blue').checked == false && document.getElementById('Gala').checked == true) {
document.getElementById('Committee').value = '$' + 450; }
else {
document.getElementById('Committee').value = '$' + 0; }
}
function sumAll()
{
y = parseInt(document.getElementById('Bonus').value);
z = parseInt(document.getElementById('Committee').value);
total = document.getElementById("Total");
total.value = (y + z);
}
function funcCalc()
{
addNumbers();
sumAll();
}
/* ]]> */
</script>
I'm really new to this and I'm trying to figure out how to sum the two values from if statements. ParseInt is returning NaN. Before that, it was adding my results together as strings. Is there an easy way to add these together without creating a very complicated if statement to total these up? Thanks! i have a form with several headings, then for each heading i have a list of items with a select box filled with numbers. For each heading a maximum of items is allowed, so the user should change the values in the dropdowns and not be allowed to continue until they are less than or equal to their maximum limit. To complicate this, there will be more than one headings on the page, but each one with a different name/id. Eg: Heading 1 Title 1 DROPDOWN1 Title 2 DROPDOWN2 Title 3 DROPDOWN3 So here the max is 10, so the values cannot exceed 10 Heading 2 Title 1a DROPDOWN1 Title 2a DROPDOWN2 Title 3a DROPDOWN3 Title 4a DROPDOWN4 So here the max is 10, so the values cannot exceed 14 thanks I have trouble with summing variable zbroj, it is summed like it is string, and i dont have any idea why. Help please! Code: function zbrojibode()
{
var i=0;
var zbroj=new Number(0);
while((document.getElementById('bodtxt5'+i).value)){
if((document.getElementById('bodtxt5'+i).value!="") || (document.getElementById('bodtxt5'+i).value!="NaN"))
zbroj+=parseFloat(document.getElementById('bodtxt5'+i).value).toFixed(2);
i++;
}
document.getElementById('ukupno').value=zbroj;
}
Below is the script and form fields I am working with. What I want to do is sum the two textbox fields and have the result show in the total textbox. The code works fine and the total textbox is updated with the value of form1.basic. The problem occurs when I add the "+ parseInt(document.form2.supporter.value)" code in the script section. What am I doing wrong? Thank you for your time and help. Code: <script type="text/javascript"><!--
function updatesum() {
document.frmtotal.total.value = parseInt(document.form1.basic.value) + parseInt(document.form2.supporter.value)}
//--></script>
<tr>
<td width="111"><form id="form1" name="form1" method="post" action="">
<label for="basic">$</label>
<input name="basic" type="text" id="basic" size="7" maxlength="7" onchange="updatesum(this.form)" />
</form></td>
</tr>
<tr>
<td><form id="form2" name="supporter" method="post" action="">
<label for="supporter">$</label>
<input name="supporter" type="text" id="supporter" size="7" maxlength="7" onchange="updatesum(this.form)" />
</form>
Hi gud mng, I have one problem... How to process textbox values/ call textbox values in JS through a Java program. My text box values are dates. I have to process these dates. Like in online banking we select day to know our transactions. After submitting we get results. remember my files are in my directory only. No need of database. My files are look like 20100929, 20100930, 20101001 For epoch_classes.js, epoch_styles.css u can download coding from this link : http://www.javascriptkit.com/script/...ch/index.shtml Code: Code:
<html>
<table width="900" border="0" cellpadding="10" cellspacing="10" style="padding:0">
<tr><td id="leftcolumn" width="170" align="left" valign="top">
<div style="margin-left:0px;margin-top:0px"><h3 class="left"><span class="left_h2">Select Option</span></h3>
<a rel="nofollow" target="_top" href="day_wise.htm" >Day-wise</a><br /> <br />
<a rel="nofollow" target="_top" href="between.htm" >Between Days</a>
<link rel="stylesheet" type="text/css" href="epoch_styles.css" />
<script type="text/javascript" src="epoch_classes.js"></script>
<script type="text/javascript">
var cal1, cal2;
window.onload = function ()
{
cal1= new Epoch('epoch_popup','popup',document.getElementById('popup_container1'));
cal2= new Epoch('epoch_popup','popup',document.getElementById('popup_container2'));
};
/*............*/
function confirmation(f)
{
var startdate = f.fromdate.value
var enddate = f.todate.value
var myday=new Date()
var yr=myday.getFullYear()
var mn=myday.getMonth()+1
var dt=myday.getDate()
var today=""
var present, ys, ms, ds, ye,me,de, start, end
if(mn < 10) { mn = "0" + mn }
if(dt <10) { dt = "0" + dt }
today= yr + "/" + mn + "/" + dt
present=yr + "/" + mn + "/" +dt
if (today < startdate )
{
alert (" Start date should not be exceed to-day's date " + present )
startdate.focus()
return false
}
if (today < enddate )
{
alert (" End date should not be exceed to-day's date " + present )
enddate.focus()
return false
}
if (today == startdate )
{
alert(" You are selected to-days date as Starting day" );
}
var answer = confirm("Do you want to continue ?")
if (answer)
{ if( startdate < enddate)
alert("Dates between " + startdate + " to " + enddate + " are confirmed" )
else
alert("Dates between " + enddate + " to " + startdate + " are confirmed" )
}
else
{
alert("Date not confirmed")
window.location="to_date.htm";
}
ys= startdate.substring(0,4);
ms= startdate.substring(5,7);
ds= startdate.substring(8,10);
start=ys + "" + ms + "" +ds
ye= enddate.substring(0,4);
me= enddate.substring(5,7);
de= enddate.substring(8,10);
end=ye + "" + me + "" +de
}
/*.......................................................*/
</script>
<div style="margin-left:100px;">
<body>
<style type="text/css">
#conf
{
margin-left:115px;
}
</style>
<td align="left" valign="top">
<table width="100" border="0" cellpadding="0" cellspacing="0">
<td style="padding-top:0px">
</table>
<h4>From Date</h4>
<form name= "formbet" id="placeholder" method="post" action="#" >
<input id="popup_container1" type="text" name= "fromdate" maxlength="10" size="20"/>
<td align="left" valign="top">
<table width="300" border="0" cellpadding="0" cellspacing="0">
<td style="padding-top:20px">
<h4>To Date</h4>
<input id="popup_container2" type="text" name= "todate" maxlength="10" size="20"/> <br /> <br />
<input id="conf" type="button" onclick="confirmation(this.form)" value="Submit">
</form>
</body>
</html>
In my coding, ys, ms, ds represents year starting, month starting, starting day... ye, me, de represents end... start,end gives file names in the format of yyyymmdd now i want to process files from 20100101 to 20100930 means from date is 2010/01/01 and to date is 2010/09/30 if i press submit button the files from 20100101 to 20100930 are processes here ys=2010 ms=01 ds =01 and ye=2010 me=09 de= 30 For this how do i call these textbox values (from date text box and todate) to another program (java) Thanks in advance. I have a bunch of checkboxes like below that the user can check some or all and click the button and see the values of all the selected checkboxes. How can I do that? Code: <script>
function alertValues(){
}
</script>
<input type="checkbox" class ="normal2" value="131971" name="list[]" >
<input type="checkbox" class ="normal2" value="131973" name="list[]" >
<input type="checkbox" class ="normal2" value="131975" name="list[]" >
<input type="checkbox" class ="normal2" value="131977" name="list[]" >
<input type="button" onClick="alertValues()"
Hi, What's a good way/ideal data structure to achieve this? The objective of the code/function is to map user-inputted strings into a pair of specific, hard-coded strings. For example, say the user types "firefox" or "ff", or "fx". The output would be the pair ["browser", "mozilla"], for example. I'm currently using a multidimensional array, but it feels inefficient and I'm having trouble mapping an arbitrary number of inputs into 2 outputs. Code: var strings = [ ["input1", "output1a"],
["input2", "output1a"],
["input3", "output1a"],
["input1", "output1b"],
["input2", "output1b"],
["input3", "output1b"]
];
How should I map the elements ["input1", "input2", "input3"] => ["output1a", "output1b"] ? Another method I used previously was a massive switch statement. This fulfills my needs, but I'm not sure about the efficiency (though if I remember correctly, switch statements become more efficient as size grows, since it uses a hash table?). Code: switch (input) {
case "ff": case "firefox": case "fx" : case "ffox":
return ["browser", "mozilla"];
case "ie": case "internet explorer":
return ["browser", "microsoft"];
...
}
Hi, Ihave this html/jscript hybrid and when i run it in firefox the error console says a value is undefined when i click it the very first <html> is highlighted???? any one no why? Can someone please tell me how I would modify the following function to get it to check if a url variable is present and if so to add it into the string variable for the url. Code: function ajaxFunction(pagenum){
var ajaxRequest; // The variable that makes Ajax possible!
try{
// Opera 8.0+, Firefox, Safari
ajaxRequest = new XMLHttpRequest();
} catch (e){
// Internet Explorer Browsers
try{
ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try{
ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e){
// Something went wrong
alert("Your browser broke!");
return false;
}
}
}
// Create a function that will receive data sent from the server
ajaxRequest.onreadystatechange = function(){
if(ajaxRequest.readyState == 4){
var ajaxDisplay = document.getElementById('ajaxDiv');
ajaxDisplay.innerHTML = ajaxRequest.responseText;
}
}
var drop_1 = document.getElementById('drop_1').value;
var model = document.getElementById('model').value;
var mileage = document.getElementById('mileage').value;
var colour = document.getElementById('colour').value;
var age = document.getElementById('age').value;
var min_price = document.getElementById('min_price').value;
var max_price = document.getElementById('max_price').value;
var min_engine_size = document.getElementById('min_engine_size').value;
var max_engine_size = document.getElementById('max_engine_size').value;
//var pics = document.getElementById('pics').value;
if (document.getElementById("pics").checked==true) {
var photos = "Yes";
}
else {
var photos = "No";
}
var keywords = document.getElementById('keywords').value;
var queryString = "?drop_1=" + drop_1 + "&model=" + model + "&mileage=" + mileage + "&colour=" + colour + "&age=" + age + "&min_price=" + min_price + "&max_price=" + max_price + "&min_engine_size=" + min_engine_size + "&max_engine_size=" + max_engine_size + "&photos=" + photos + "&keywords=" + keywords + "&page=" + pagenum;
ajaxRequest.open("GET", "filtered.php" + queryString, true);
ajaxRequest.send(null);
}
If my url is index.php?make=Apolo then I need to get this added into the var queryString part of the function so that the ajax returns the correct values. Any help would really be appreciated, I'm fairly new to js. Hi Guys, How do I sum the values of an array and output the result using document.write? Say my array is var number=new Array(1.234,56.43,1.02); THANKS Thought this wud work? Code: <script type="text/javascript"> var x = [1, 2, 3, 4, 5, 6, 7, 8, 9]; document.write(sum(x)); </script> OK, so a bit of an issue... I've done a navigation, that works just wonderfully. There are three dropdowns in the top rown, and one down below. The three on the top populate the one below it. All works fine until.... *dum dum dah dummmm* I wanted to make the bottom box invisible until one of the top onse were selected. The nav script goes as follows: Code: var cacheobj=document.dynamiccombo.stage2
function populate(x){
for (m=cacheobj.options.length-1;m>0;m--)
cacheobj.options[m]=null
selectedarray=eval(x)
for (i=0;i<selectedarray.length;i++)
cacheobj.options[i]=new Option(selectedarray[i].text,selectedarray[i].value)
cacheobj.options[0].selected=true
}
populate(combo1)
Code: <select name="usstage1" size="1" onchange="showDiv(this.value);window.open(this.options[this.selectedIndex].value,'_top');" >
<option selected="selected" value="javascript:populate(combo1)">United States</option>
<option value="javascript:populate(combo2)">Alabama</option>
<option value="javascript:populate(combo3)">Alaska</option>
<option value="javascript:populate(combo4)">Arizona</option>
<option value="javascript:populate(combo5)">Arkansas</option>
<option value="javascript:populate(combo6)">California</option>
etc...
Which populates the bottom dropdown Now to hide it, I've done: Code: var lastDiv = "";
function showDiv(divName) {
if (lastDiv) {
document.getElementById(lastDiv).className = "hiddenDiv";
}
if (divName && document.getElementById(divName)) {
document.getElementById(divName).className = "visibleDiv";
lastDiv = divName;
}
}
And used a Code: <div id="menudiv" class="hiddenDiv"> around the lower dropdown, which hides it effectively then I modded the upper menu Code: <select name="usstage1" size="1" onchange=" showDiv(this.value); window.open(this.options[this.selectedIndex].value,'_top')" > adding what's in red to call the change Now this is where I'm stuck, how can I get: Code: <option value="menudiv;javascript:populate(combo2)">Alabama</option> the two options in...have tried a couple of different ways and failed horribly eash time...or maybe I'm just going about this completely wrong? Hi all, I'm using a nifty little form-dependency script (http://www.dynamicdrive.com/dynamici...dependency.htm) that will hide certain form fields depending on the answer to previous fields on the form. Basically, I can make a field hide/appear for users with JS enabled; for example, if the field "Instrument1" is answered "Oboe" then this new field that I designate will appear: Code: <input type="hidden" class="DEPENDS ON Instrument1 BEING Oboe" /> What I really want to do is use JavaScript to manipulate Instruemnt1 do that it will work with Instrument1, Instrument2, Instrument3, all the way through Instrument10. If any one of those 10 "Instrument*" fields are answered "Oboe". Thanks for reading. I have 2 combo boxes where you can move the items in combo box 1 to combo box 2. I want to validate that combo box 2 actually has something moved to it. How can I count the items in combo box 2. Combo box 2 will initially have no items in the box on page load. It is up to the user to move the items to combo box 2 and I want to make sure at least 1 item was moved.
Hello Thanks to those people on this Forum who have provided me with help, along with my little knowledge of Javascript I have been able to create the basis of a form for my Skittle League which will allow teams to submit results over the web. I have one calculation to complete before I look to make the form live and I am hoping someone can provide the final peice of the jigsaw. The scoresheet can be found at http://www.stroudskittles.co.uk/test/scorecard.html The form adds togther the 5 values for each half for each team and places them in a Half Total box below. The form adds together the two totals for each half for each team then places them in a Total box below I have been able to add a operation using the onchange event the points are automatically calculated for each half and total, depending on the overall scores, 2 points for a win, 1 for a draw 0 for a loss. What I'm struggling to do is add the three points totals together to generate the Overall Points for a team and place them in a text box at the top of the scoresheet (marked xxx on the page). Can anyone suggest the best method to do this. Also is it possible to combine the sums into one script therefore reduing the overall size. Your help very much appreciated Hi to all, Sorry to ak this question it may be easy but i didn't got the solution on net please provide the proper answer. My question is : I am defining hyperlink in struts as <a href= Javascript:formSubmit(<bean:write name="AA" property="aa">','<bean:write name="BB" property="bb">) defining function as function formSubmit(Aa,Bb) { document.forms[0].action="/accesingpage.do?method=create&AA=+Aa" ----> in above statement how to pass the second parameter(i.e Bb)....I tried different ways but giving syntax error. please post the ans as soon as possible i am making a mock website where the user make their own computer by selecting items from drop down menus. then a value of the item comes up below. this works but i am having trouble adding the numbers up for the total cost. here is my code <html><head><title>build</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style type="text/css"> </style></head> <body> <script type="text/javascript"> var motherboard = new Array( '74', '50', '73', '106', '269', '64', '55', '135', '47', '79', '118', '163'); var cpu = new Array( '88', '104', '168', '352'); function changeMotherboard(Mid) { var ind = document.getElementById(Mid).selectedIndex; document.getElementById("motherboardDisplay").innerHTML=motherboard[ind]; } function changeCpu(Cid) { var ind = document.getElementById(Cid).selectedIndex; document.getElementById("cpuDisplay").innerHTML=cpu[ind]; } </script> </head><body> <form> Motherboard <select id="motherboard" onChange="changeMotherboard('motherboard');"> <option value="0">Asus P5G41C-M-LX G41 DDR2+DDR3</option> <option value="1">MSI G41M-P33 </option> <option value="2">Asus P5P41T-LE </option> <option>G-B H55M-S2H</option> <option>Asus P7P55D-E-Deluxe</option> <option>Asus M2N68-AM Plus </option> <option>ASRock N68S3-UCC </option> <option>Asus M4A88TD-M-EVO-USB3</option> </select><br> </form> <div id="motherboardDisplay">Select from the list to see price</div> <form> CPU <select name="cpu" id="cpu" onChange="changeCpu('cpu');"> <option value="0">E6500</option> <option value="1">Core G6950</option> <option value="2">i3-550</option> <option>Core i7-930</option> </select> <br> </form> <div id="cpuDisplay" type = text>Select from the list to see price</div> <p> </p> <p> </body> </html> hello I am having a problem to add numbers store in an array. arrayValues[0][0] = 1; arrayValues[0][1] = 2; var col = 0; var sum; for ( var row = 0; row < index; i++ ) sum += arrayValues[col][row]; my result is ==> 12 it is defining my sum variable as string. even I try do do this var sum = 0; to define sum as numeric variable. my result was ==>012. Any idea, this is my first javaScritp code. Thanks. |
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