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JavaScript - Html Tag Input - String To Numeric
Utilising "Search" what resides at:
http://www.codingforums.com/showthread.php?t=6441 appears to be closest to my problem but does not solve it. I want to use HTML Input text boxes for processing within nested functions and with the results output back to the HTML table. The code contains the HTML and Javascript. As the code stands data is reported back to the HTML table because the wanted functions have been commented out. Within the code is a note regarding the above. If I try to engage the functions add() or take() I have "NaN" returned. I have attempted to use x=Number(yy), x=parseInt(yy), but to no avail. [code]<html > <head> </head> <body> <form id="myself"> <table border="1" bgcolor="lightblue"> <tr height="25px"> <td id="ad" width="25px"></td> <td id="sb" width="25px"></td> </tr> <tr height="25px"> <td><input id="lt" type="text" value="" onChange="calc();" style="width:20px"></td> <td><input id="rt" type="text" value="" onChange="calc();" style="width:20px"></td> </tr> </table> </form> <script language="javascript"> var mm; var nn; var tot; var subt; function calc(){ var n1=document.getElementById("lt").value; var n2=document.getElementById("rt").value; var nn; var mm; nn=Number(n1); mm=Number(n2); tot=mm+nn; // comment these lines out and ad.innerHTML=tot; // activate the functions subt=Math.abs(nn-mm); // sb.innerHTML=subt; // mm and nn need to passed to the functions //add(); //take(); } function add(){ tot=mm+nn; ad.innerHTML=tot; } function take(){ subt=Math.abs(nn-mm); sb.innerHTML=subt; } </script> </body> </html> [icode] Similar TutorialsFirst off, I would like to thank everyone who has offered their help so far in my little self-appointed project dealing with astral body locations. I finally have the script working the way it was intended to and am looking at cleaning it up at this point. One of the things I would like to do in cleaning it up is change the way values are inputed when converting from Polar Coordinates to Cartesian Coordinates. The script is currently set up such that Right Accension is input in three fields identified as Hours, Minutes and Seconds. By the same token, the Declination Angle is input through three fields identified as Degrees, Minutes and Seconds. What I would like to do at this point is convert each set of three input fields to a single input field and allow the user to input the values as; Right Accension = 13:23:15.2 Declination Angle = 22:17:33 I understand that these would be inputed as String values and am familiar enough with the Split feature to extract the individual pieces of string (in this instance they would be 13, 23, 15.2 and 22, 17 and 33). What I am not familiar with, however, is converting those string values into numbers. I have done a bit of research into it and haven't really found anything that makes sense to me just yet, so if anyone can offer a bit of guidance, I am all ears. Not looking for anyone to specifically write the code for me, but if one of you fine folks could point me in the right direction as far as tutorials go, I would be thankful. GW I am making a function where I need to know whether the input is a variable with a string value var foo = "bar"; Function(foo) or if it is a string, wherein it would be the name of an object object = { ThingsInside: function(){code} } Function('object') Code: function Function (object){
if(object is a string){
do this
}
else if (object is a variable with a string value){
do this
}
else{
do something else
}
Because they would be both passed by value, I'm not sure how or if there is a way to tell as they would both just appear as string inputs, right? I have a problem thats above my head, im new to javascript. I want to be able to control the first three characters of an input string on a login form. If a user types GP15555 or JP15555 I want it to change to GPL5555 or JPL5555 respectively changing the "1" to an "L" on the prefix is this at all possible? any point in the right direction would be great. heres my code Code: </script>
<script language="JavaScript" type="text/javascript">
//<![CDATA[
function Login(form) {
var password = form.password.value;
var pin = form.pin.value;
var product = form.product.value;
if (password) {
var htsite = product + "/" + password + "/" + pin + "/index.html";
window.location = htsite;
}
else {
alert("Please enter your password and pin.");
}
}
// End -->
//]]>
</script>
/thanks gp Hi, I am trying to write some code that will test if a user enters a non-numeric character in an input text field, and if so, replaces it with a '0' Code:
<script type="text/javascript">
function IsNumVal (){
for (J=1; J<=3; J++){
if (isNaN(Number(document.getElementById('Intext' + J).value))){
document.getElementById('Intext' + J).value = 0;
}
}
}
</script>
<Body>
<table border="1" cellspacing="1" id = "Numbers">
<tr id="RowNum1">
<td ><input type="text" size = "5" name="Intext1" id="Intext1" value = "3"
onkeyup="IsNumVal()" /></td>
</tr>
<tr id="RowNum2">
<td><input type="text" size = "5" name="Intext2" id="Intext2" value = "9"
onkeyup="IsNumVal()" /></td>
</tr>
<tr id="RowNum3">
<td><input type="text" size = "5" name="Intext3" id="Intext3" value = "18"
onkeyup="IsNumVal()" /></td>
</tr>
</table>
</Body>
document.getElementById('Intext' + J).value = 0; doesn't work document.Schedule.'Intext' + J.value = 0; doesn't work document.Schedule.Intext2.value = 0; works, but I need to test each text field while looping, so I can't "hard code" the ID. Suggestions? Dear Experts I want textbox1 to accept only numeric data as 55,65,698.00 Is there any easy way to validate textbox1 with javascript? Please help I have an input box with an I.D. of "q" on my website... By entering javascript into the URL bar I can change the place holder text (client side) to say "test" javascript:void(document.getElementById('q').value='test'); Now if I wanted to make it say test (but in bold with html) how would I do that?? I tried: javascript:void(document.getElementById('q').value='<b>test'); But that won't work.. it's a string! I don't know much javascript... Thanks all! What i'm trying to do is, insert a file upload input into HTML, depending on dropdown menu selection. I have a form, where you enter your email and a message. What i'm trying to add now is, a dropdown menu which will select type of message, with 4 options. If 3rd or 4th option is selected, a <input type="file"> will be inserted under the message box. I also don't want the page to refresh. here's the code i have now: Code: <form action="zahteva.php" name="naroci" method="POST">
<label>Your email:</label>
<input id="text" type="text" name="email" autocomplete="off">
<br />
<label>Type</label>
<select name="type">
<option value="1">1st (no file upload)</option>
<option value="2">2nd (no file upload)</option>
<option value="3">3rd (file upload)</option>
<option value="4">4th (file upload)</option>
</select>
<label>Message:</label>
<textarea id="txtrea" name="sporocilo"></textarea>
<br />
<!-- <label>File:</label>
<input type="file" name="file">
only show this part if 3rd of 4th is selected -->
<input id="gump" type="submit" value="Send"></td>
</form>
Absolutely nothing happens when I click on the button, and I know NOTHING about Java. Need serious help! The user is supposed to arbitrarily type a number (1-5) and see if it's the same one that JavaScript generates. The function "secretNum" is supposed to be a global variable, but I don't have a clue as to what that means. Anyways, an alert should pop up saying either congrats or try again. Code: <html>
<head>
<title>Guessing Game</title>
<script type="text/javascript">
function setUp ()
{
secretNum = 1+Math.floor(5*Math.random());
alert = (secretNum);
}
function checkGuess ()
{
userGuess = document.IfForm.guessBox.value;
userGuess = parseFloat(userGuess);
// get value from text box
if (secretNum == userGuess)
{alert ("Correct!");}
else
{alert ("Sorry, Try Again");}
}
</script>
</head>
<body style="text-align:center" onLoad="setUp();">
<h2>Guess the Number From 1 to 5</h2>
<form name="IfForm">
Enter Your Guess:
<input type="text" size="5" name="guessBox" value="" />
<br />
<input type="button" value="Check Guess" onClick="checkGuess" />
</form>
</body>
</html>
Dear Experts I have following codes Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="language" content="english">
<meta http-equiv="Content-Style-Type" content="text/css">
<title>Numeric Textbox Sample</title>
<style type="text/css">
#box1 {width:200px;height:170px;border:1px solid green;background:#e3eeff;padding-top:20px;}
.button {width:100px;margin-top:0px;}
body {
margin:0;
margin-top:100px;
}
</style>
<script language="javascript">
function NumericDotOnly()
{
var key = window.event.keyCode;
if (((key >47) && (key <58)) || (key==46))
window.event.returnValue = true;
else
window.event.returnValue = false;
}
function formatCurrency(num) {
num = num.toString().replace(/\$|\,/g,'');
if(isNaN(num))
num = "0";
sign = (num == (num = Math.abs(num)));
num = Math.floor(num*100+0.50000000001);
cents = num%100;
num = Math.floor(num/100).toString();
if(cents<10)
cents = "0" + cents;
for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
num = num.substring(0,num.length-(4*i+3))+','+
num.substring(num.length-(4*i+3));
return (((sign)?'':'-') + num + '.' + cents);
}
</script>
</head>
<body onload="form2.text1.focus()" >
<center>
<p>I need following format<br>
99,999,999.99<br>
</p>
<div id="box1">
<form name=form2>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr><td>Amount</td>
<td><input type=text name=text1 size=15 value="" onkeypress="NumericDotOnly
()";onblur="formatCurrency(this.value)"> </td></tr>
<tr><td>Tax</td> <td><input type=text name=text2 size=15 value=""
onkeypress="NumericDotOnly()";onblur="formatCurrency(this.value)"></td></tr>
<tr><td>Result</td><td><input type=text name=text3 size=15 value="" disabled></td></tr>
</table>
<hr>
<input class="button" type=button name=command1 value="Plus"
onclick="form2.text3.value=parseFloat(form2.text1.value)+parseFloat(form2.text2.value)"><br>
<input class="button" type=button name=command8 value="Focus"
onclick="form2.text1.select()";"form2.text1.focus()"><br>
<input class="button" type=reset name=command9 value="Reset">
</form>
</div>
</center>
</body>
</html>
Please help me to apply following format 99,999,999.99 Thanks in advance Shouldn't this work? It's letting the form submit to the next page when I add in this if statement: Code: var first = document.forms["contact1"].elements["name"].value;
else if (!preg_match("/^[a-z]$/i", first)) {
alert("Please enter only letters for your first name");
return false;
}
Hi, Sorry this is probably quite a noobish question, but I have a function which accepts the parameter "screen_name". I want to include this variable within some HTML, which is the code for a Twitter. Here is the function: PHP Code: var htmlTest = "<script src='http://widgets.twimg.com/j/2/widget.js'></script>" + "<script>" + "new TWTR.Widget({" + "version: 2," + "type: 'profile'," + "rpp: 8," + "interval: 6000," + "width: 250," + "height: 300," + "theme: {" + "shell: {" + "background: '#0e428f'," + "color: '#ffffff'" + "}," + "tweets: {" + "background: '#ffffff'," + "color: '#615161'," + "links: '#0748eb'" + "}" + "}," + "features: {" + "scrollbar: false," + "loop: false," + "live: false," + "hashtags: true," + "timestamp: true," + "avatars: false," + "behavior: 'all'" + "}" + "}).render().setUser('" + screen_name + "').start();" + "</script>"; var test = "hello"; document.getElementById('dynamic-content').innerHTML = htmlTest; } </script> The function works fine when I omit the HTML and just return "screen_name" to the target <div>, but it doesn't work as above. Can anyone spot what I'm doing wrong??? Hi, I was wondering if it's possible to capture a piece of HTML using XPath where the source is a sting rather than a document. I know how to use xPath and document.evaluate() as I've used it before on actual web pages - I just dont understand how to run it on a string of HTML. E.g. if I have this string: var stg = "<div>The best-laid schemes o' <span>mice</span> an' men</div>"; I'd like to convert this string into something that I can run the document.evaluate() on so that I can find the contents of the SPAN element (without loading the string into a real browser page). Thanks Hi guys, This has been asked before, and i've seen many of the previous posts. And tried for hours. But finally i've broken and have to ask for help. What am I doing wrong here? Can someone please explain? Code: var u=document.forms["lead"]["name"].value;
var v=document.forms["lead"]["city"].value;
var x=document.forms["lead"]["country"].value;
var y=document.forms["lead"]["mobile"].value;
var z=document.forms["lead"]["email"].value;
if (u==null || u=="")
{
alert("Please enter your first name.");
return false;
}
if (v==null || v=="")
{
alert("Please enter your city.");
return false;
}
if (isNaN(lead.y.value))
{
alert("bloody work!");
return false;
}
if (x=="Argentina" && y.length < 11)
{
alert("Please enter a valid Argentinian phone number.");
return false;
}
Thanks in advance. I would like to fill a text field using both text and variables.. i.e. it would say x+2, so i would write.. (if 2 were a given variable) form.form1.value = "x+" 2 ??? (I know that isn't correct, I'm just wondering how I would go about this..) I'm fairly new to javascript and would appreciate any help offered. I'm trying to use the input from an HTML form to interact with a switch statement in javascript. I want my users to input a few specific words, and have each word they input redirect them to a specific page. Below is what I've currently come up with. I cannot get it to function properly as it continues to display the default output regardless of the input Code:
<script language="JavaScript" type="text/javascript" >
<!--
function checkform ( form )
{
var favcolour =("form.data", "")
switch (favcolour) {
case "red":
window.location="index.html";
break;
case "green":
window.location="index.html#tips";
break;
case "blue":
window.location="index.html#blue";
break;
default:
document.writeln("Invalid Input");
};
}
// -->
</script>
</head>
<body>
<form action="" method="post" onsubmit="return checkform(this);">
<input type="text" name="data" />
Again any help would be greatly appreciated! Hello experts, I have inserted the easy slider code into my web page to make a sliding gallery. I attempted to modify the code so that numeric navigation AND arrow navigation (next, previous) could toggle slides BUT I can't see the number navigation in IE6. Every other browser I have tested (mac Safari, Firefox, and Google Chrome as well as IE7,8) work perfectly. Since I modified the original, I assume the error is in my javascript code OR in my CSS. Please help. I wouldn't ask if I wasn't at the end of my rope! Here is the Javascript: Code: /*
* Easy Slider 1.7 - jQuery plugin
* written by Alen Grakalic
* http://cssglobe.com/post/4004/easy-slider-15-the-easiest-jquery-plugin-for-sliding
*
* Copyright (c) 2009 Alen Grakalic (http://cssglobe.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* Built for jQuery library
* http://jquery.com
*
*/
(function($) {
$.fn.easySlider = function(options){
// default configuration properties
var defaults = {
prevId: 'prevBtn',
prevText: 'Previous',
nextId: 'nextBtn',
nextText: 'Next',
controlsShow: true,
controlsBefo '',
controlsAfter: '',
controlsFade: true,
firstId: 'firstBtn',
firstText: 'First',
firstShow: false,
lastId: 'lastBtn',
lastText: 'Last',
lastShow: false,
vertical: false,
speed: 900,
auto: false,
pause: 3000,
continuous: false,
numeric: false,
numericId: 'controls'
};
var options = $.extend(defaults, options);
this.each(function() {
var obj = $(this);
var s = $("li", obj).length;
var w = $("li", obj).width();
var h = $("li", obj).height();
var clickable = true;
obj.width(w);
obj.height(h);
obj.css("overflow","hidden");
var ts = s-1;
var t = 0;
$("ul", obj).css('width',s*w);
if(options.continuous){
$("ul", obj).prepend($("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px"));
$("ul", obj).append($("ul li:nth-child(2)", obj).clone());
$("ul", obj).css('width',(s+1)*w);
};
if(!options.vertical) $("li", obj).css('float','left');
if(options.controlsShow){
var html = options.controlsBefore;
if(options.numeric){
html += '<ol id="'+ options.numericId +'"></ol>'
if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></span>';
html += ' <span id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span>';
html += ' <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>';
if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';
};
html += options.controlsAfter;
$(obj).after(html);
};
for(var i=0;i<s;i++){
$(document.createElement("li"))
.attr('id',options.numericId + (i+1))
.html('<a rel='+ i +' href=\"javascript:void(0);\">'+ (i+1) +'</a>')
.appendTo($("#"+ options.numericId))
.click(function(){
animate($("a",$(this)).attr('rel'),true);
});
$("a","#"+options.nextId).click(function(){
animate("next",true);
});
$("a","#"+options.prevId).click(function(){
animate("prev",true);
});
$("a","#"+options.firstId).click(function(){
animate("first",true);
});
$("a","#"+options.lastId).click(function(){
animate("last",true);
});
};
function setCurrent(i){
i = parseInt(i)+1;
$("li", "#" + options.numericId).removeClass("current");
$("li#" + options.numericId + i).addClass("current");
};
function adjust(){
if(t>ts) t=0;
if(t<0) t=ts;
if(!options.vertical) {
$("ul",obj).css("margin-left",(t*w*-1));
} else {
$("ul",obj).css("margin-left",(t*h*-1));
}
clickable = true;
if(options.numeric) setCurrent(t);
};
function animate(dir,clicked){
if (clickable){
clickable = false;
var ot = t;
switch(dir){
case "next":
t = (ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;
break;
case "prev":
t = (t<=0) ? (options.continuous ? t-1 : 0) : t-1;
break;
case "first":
t = 0;
break;
case "last":
t = ts;
break;
default:
t = parseInt(dir);
break;
};
var diff = Math.abs(ot-t);
var speed = diff*options.speed;
if(!options.vertical) {
p = (t*w*-1);
$("ul",obj).animate(
{ marginLeft: p },
{ queue:false, duration:speed, complete:adjust }
);
} else {
p = (t*h*-1);
$("ul",obj).animate(
{ marginTop: p },
{ queue:false, duration:speed, complete:adjust }
);
};
if(!options.continuous && options.controlsFade){
if(t==ts){
$("a","#"+options.nextId).hide();
$("a","#"+options.lastId).hide();
} else {
$("a","#"+options.nextId).show();
$("a","#"+options.lastId).show();
};
if(t==0){
$("a","#"+options.prevId).hide();
$("a","#"+options.firstId).hide();
} else {
$("a","#"+options.prevId).show();
$("a","#"+options.firstId).show();
};
};
if(clicked) clearTimeout(timeout);
if(options.auto && dir=="next" && !clicked){;
timeout = setTimeout(function(){
animate("next",false);
},diff*options.speed+options.pause);
};
};
};
// init
var timeout;
if(options.auto){;
timeout = setTimeout(function(){
animate("next",false);
},options.pause);
};
if(options.numeric) setCurrent(0);
if(!options.continuous && options.controlsFade){
$("a","#"+options.prevId).hide();
$("a","#"+options.firstId).hide();
};
});
};
})(jQuery);
and here is my CSS: Code: #photos{
background-color: #453F33;
width: 875px;
height: 400px;
margin-top: -5px;
position: relative;
}
#slider{
padding-top:50px;
margin-left: 180px;
}
/* image replacement */
.graphic, #prevBtn, #nextBtn, #slider1prev, #slider1next{
margin:0;
padding:0;
display:block;
overflow:hidden;
text-indent:-8000px;
}
#content{
position:relative;
}
/* Easy Slider */
#slider ul, #slider li,
#slider2 ul, #slider2 li{
margin:0;
padding:0;
list-style:none;
}
#slider2{margin-top:1em;}
#slider li, #slider2 li{
width:500px;
height:312px;
overflow:hidden;
}
#prevBtn, #nextBtn,
#slider1next, #slider1prev{
display:block;
position:absolute;
top:170px;
left: 40px;
}
#nextBtn, #slider1next{
left:780px;
}
#prevBtn a, #nextBtn a,
#slider1next a, #slider1prev a{
display:block;
position:relative;
width:60px;
height:77px;
background:url(../images/btn_prev.jpg) no-repeat 0 0;
}
#nextBtn a, #slider1next a{
background:url(../images/btn_next.jpg) no-repeat 0 0;
}
/* numeric controls */
ol#controls{
margin:1em 0;
padding:0;
height:28px;
margin-left: 650px;
}
ol#controls li{
margin:0 10px 0 0;
padding:0;
float:left;
list-style:none;
height:28px;
line-height:28px;
display: inline;
}
ol#controls li a{
float:left;
height:28px;
line-height:28px;
background:#A6000E;
color: #FFF;
padding:0 10px;
text-decoration:none;
margin-top: -360px;
}
ol#controls li.current a{
background:#A1DFC6;
color:#fff;
}
ol#controls li a:focus, #prevBtn a:focus, #nextBtn a:focus{
outline:none;
}
#slider li span {
display: block;
width: inherit;
height:30px;
margin-top: -317px;
color: #000;
padding-top: 10px;
padding-left: 5px;
overflow:hidden;
overflow-y: hidden;
overflow-x: hidden;
filter:alpha(opacity=70);
-moz-opacity:0.7;
-khtml-opacity: 0.7;
opacity: 0.7;
background-color: #B1AA9A;
}
And you can view my site in the wild at www.ibikeseoul.com I want to use javasript to create a new html page named from a text field in a form. Then I want to use javasript to copy all of the form fields to the new html page that was created using javascripting. I am creating a user are using a Javascript password login. With most of them the page is the user name or password. So this is why I am looking to do this. I use web 1000 a free host and they will only let me use javascripting. Any info or help would be great thank you
hi, i am using <input type = "file" id = "upload"> in my html page. i want to disable the textbox of this control so that user cannot type any file location here. user can upload file only through browse button. is there a way to disable this textbox thru javascript? thnx Hi.. I am facing identifier starts immediately after numeric literal error in firefox onclick="document.location.href='<%= themeDisplay.getPathMain() %>/portal/ext/asite/assignOrg'"/> can any 1 solve this?? |
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