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JavaScript - Is Alpha And Is Numeric Verify
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;
}
Similar TutorialsHi, Is it possible in Javascript to verify a range of IP's for open port 80 and show as a hiperlink? The ideia is similar to ip scanners but it's for a web spider... Thanks Reply With Quote 01-11-2015, 01:04 PM #2 Philip M View Profile View Forum Posts Supreme Master coder! Join Date Jun 2002 Location London, England Posts 18,371 Thanks 204 Thanked 2,573 Times in 2,551 Posts Not possible IMO. Javascript cannot access or interact with the operating system. All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit. Hello to everyone! This is my first project in javascript and i need some help. I am using an 8*8 chess board with 8 queens placed by the user .Verify that they do not attack each other ,basically this means that there aren't two queens on the same line/column and diagonal and display a message box with the info. thanks guys! I'm trying to verify todays date against my input date, using a check value function, but for some reason when it comes to a day over 9 like 12/10/2009 or 12/20/2009 looks like is only recognizing the first number 12/1/2009 and 12/2/2009 and getting my alert back as to choose a future date, this is my code, any help would be greatly appreciated: var currentTime = new Date() var month = currentTime.getMonth() + 1 var day = currentTime.getDate() var year = currentTime.getFullYear() function checkValues() { if (owt8.dayr.value <=month+'/'+day+'/'+year ) { alert("Please enter a future date!"); return false; } owt8.submit(); alert("Your request has been submited") window.close() } long story short, I do work for a church, a charity asked me to fix some errors at their web site...1 problem arose and JavaScript is not my strong suite..they have an newsletter request form, just enter your email and your on their newsletter list, as you can see from the code below there is a problem, no valid email verify routine, if you just enter a space in the form, it will accept the info and send a blank request to the charity where an email addie should be... no clue how to fix, as I said javascript is not something I do at all....any help appreciated. kenrich ======================= <script type="text/javascript"> $(function(){ $("#rform").submit(function(){return false;}); $("#rsubmit").click(function(){ if($("input#s").val() != "" && $("input#s").val() != 'Enter Email Address'){ $.get("/rsignup.php?email="+$("input#s").val(), function(data){ $("#rdiv").html(data).css("margin-top","15px"); }); } else { alert('Please enter your email address to subscribe'); } }); }); </script> <!-- BEGIN Form --> <div style="text-align: left;margin: 20px 0 -10px 10px;font-weight:bold;">Email Newsletter:</div> <div id="newsletterdiv" style="height:25px;"> <form name="optin" action="#" onsubmit="return false;" method="post" style="margin-bottom:2;" id="newsletterform"> <input type="hidden" name="vff" value="103"> <input type="hidden" name="vpp" value="i"> <div> <input value="Enter Email Address" onfocus="if (this.value == 'Enter Email Address') {this.value = '';}" onblur="if (this.value == '') {this.value = 'Enter Email Address';}" name="ea" id="s" type="text"> <input id="newslettersubmit" value=" " type="submit" name="go"> </div> </form> </div> <!-- END Form --> Hi, This is my first serious attempt at using a regular expression. My first name field should allow alpha characters only [A-Za-z], but it seems to be testing for the presence of 1 alpha character. If one is found in the string then anything else is allowed. Bob returns valid which is what I need. Bob1 returns valid but should NOT be valid.. 1 returns valid not valid which is what I need. My code. Code: function isValidFirstName(p1_firstName) {
//http://www.javascriptkit.com/jsref/regexp.shtml
var re = new RegExp("[A-Za-z]");
var valid = re.test(p1_firstName);
alert("valid: " + valid);
return valid;
}
Thank you in Advance for Your Help! Thank you for your reply. With the code I had to acknowledge nothing had been inserted,(that is, still spaces, it was working. When I added the code to only accept alpha chars etc., I inserted numbers, nothing worked, with no error message. Would you, or can I send the whole code through for the form. I noticed that the form tags had been changed so I altered them as well according to your message. 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 Hi, I am trying to only allow a person to enter alpha characters in this field and if they try to enter a number a pop up box will tell them they can only enter alpha characters. Can this be done? Here is my code: How would you like us to address you? ("Dear Pat" Dear <input name="SALUT" type="text" id="address2" style="color: #000000; border-left: 0px solid #008000; border-right: 0px solid #254D78; border-top: 0px solid #008000; border-bottom: 2px solid #0033CC; background-color: #EBE1BE" tabindex="5" size="15" maxlength="50" onFocus="if(this.value=='SALUT')this.value='';"> Any help would be greatly appreciated. Thanks 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 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] First 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 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..) 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. 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 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?? I am finishing up my Form page, and totally forgot to have a numeric only field. So I added it and I can't get it to work. I also am having issues throwing an error when you don't select at least one topping. And are these lines correct? Code: document.cookie = "toppings=" + encodeURIComponent(document.getElementsByName("toppings[]").value);
Code: document.cookie = "extra=" + encodeURIComponent(extra); Here is a link to the page hosted on my dropbox http://dl.dropbox.com/u/49211616/dw/...orderPage.html Javascript: Code: function validateOrder ()
{
var crustSelection = document.orderForm.crust.value;
var crustPrice; //Adds $1 for Deep DishParmesagn, and Sourdough
var count = 0; //Amount of Toppings Selected
var choice = ""; //Toppings Selected list
var x = ""; //Don't need for the Cookie
var extra = 0; //extra charge for toppings over 3
try{
var error = ""; // Initialize Var to store the error messages.
if(document.getElementById("delivery").checked != true &&
document.getElementById("takeout").checked != true)
{
error=error+"Order Type is required.\n"
}
if(document.getElementById("fname").value == "")
{
error = error + "First Name is required.\n";
}
if(document.getElementById("lname").value == "")
{
error = error + "Last Name is required.\n";
}
if(document.getElementById("address").value == "")
{
error = error + "Street address is required.\n";
}
if (isNaN(document.getElementById("quantity")))
{
error = error + "Enter Pizza Quantity in Numbers Only.\n";
}
if(document.getElementById("crust").value == "")
{
error = error + "Crust Type is required.\n";
}
if(document.getElementsByName("toppings").value == 0)
{
error = error + "Select at Least One Topping.\n";
}
if(error == "")
{
// save all the information in the cookie
document.cookie = "firstName=" + encodeURIComponent(document.getElementById("fname").value);
document.cookie = "lastName=" + encodeURIComponent(document.getElementById("lname").value);
document.cookie = "address=" + encodeURIComponent(document.getElementById("address").value);
document.cookie = "order=" + encodeURIComponent((document.getElementById("delivery").checked) ? "delivery" : "takeout");
document.cookie = "quantity=" + encodeURIComponent(document.getElementById("quantity").value);
document.cookie = "quantity=" + encodeURIComponent(document.getElementById("quantity").value);
document.cookie = "crust=" + encodeURIComponent(document.getElementById("crust").value);
document.cookie = "toppings=" + encodeURIComponent(document.getElementsByName("toppings[]").value);
alert("Order successfully Placed!");
}
else
{
alert(error);
}
}
catch(ex)
{
alert("An error occurred!.\n" + "Error Name : " + ex.name + "\nError Message : " + ex.message);
}
for (var i=1; i<11; i++)
{
x = document.orderForm['toppings' + i].value;
if (document.orderForm['toppings' + i].checked)
{
choice = choice + " " + x ;
count ++;
}
}
if (choice.length <= 0)
{
choice = choice + "NONE";
}
if (count > 3)
{
extra = (count - 3) * 1
}
document.cookie = "extra=" + encodeURIComponent(extra);
}
</script>
HTML: Code: <form name = "orderForm" onsubmit="validateOrder()">
<table width="600" border="0">
<tr>
<th scope="col" width="400" align="left"><b>First Name</b><br /><input type="text" id="fname" name="fname" size=30>
<br />
<br />
<b>Last Name</b><br />
<input type="text" id="lname" name="lname" size=30>
<br />
<br />
<b>Street Address</b><br />
<input type="text" id="address" name="address" size=30>
<br />
<br />
<input name="orderType" value="delivery" id="delivery" type="radio">Delivery</font>
<input name="orderType" value="takeOut" id="takeout" type="radio">Take Out</font></th>
<th scope="col" width="200" align="Left">
How Many Pizzas? <input type="text" id="quantity" name="quantity" size=5>
<br />
<br />
<select name="crust" id="crust">
<option selected value="false">Select Crust Type</option>
<option value="regular">Regular Crust</option>
<option value="thin">Thin Crust</option>
<option value="deep">Deep Dish</option>
<option value="Parmesagn">Parmesagn Cheese</option>
<option value="sourdough">Sourdough</option>
</select>
<br />
<br />
Select at Least One Topping:
<br />
<br />
<input name = "toppings1" type = "checkbox" value = "extraCheese"> Extra Cheese<br>
<input name = "toppings2" type = "checkbox" value = "sausage"> Sausage<br>
<input name = "toppings3" type = "checkbox" value = "pepperoni"> Pepperoni<br>
<input name = "toppings4" type = "checkbox" value = "bacon"> Bacon<br>
<input name = "toppings5" type = "checkbox" value = "canadianBacon"> Canadian Bacon<br>
<input name = "toppings6" type = "checkbox" value = "mushroom"> Mushroom<br>
<input name = "toppings7" type = "checkbox" value = "pineapple"> Pineapple<br>
<input name = "toppings8" type = "checkbox" value = "onion"> Onion<br>
<input name = "toppings9" type = "checkbox" value = "olive"> Olive<br>
<input name = "toppings10" type = "checkbox" value = "greenPepper"> Green Pepper<br></th>
</tr>
</table>
<input name="submit" type="submit" value="submit" /><input name="" type="reset" />
</form>
Hi, I want to have a textbox in which only numeric values will be allowed whose maximum limit is 240( 230.99 should be allowed). I am unable to do that. I am able to format the value entered by placing . in proper places and also I have limited upto two decimal places. But the problem is the cursor is not moving left when I have entered a value and I am unable to limit the value upto 240. It is taking any huge number also. Please help. My code is as below :- <html> <head> <script> function isNumberKey(evt) { var charCode = (evt.which) ? evt.which : event.keyCode if (charCode != 46 && charCode > 31 && (charCode < 48 || charCode > 57)) return false; return true; } function format(input){ var num = input.value.replace(/\,/g,''); if(!isNaN(num)){ if(num.indexOf('.') > -1){ num = num.split('.'); if(num[1].length > 2){ num[1] = num[1].substring(0,num[1].length-1); } input.value = num[0]+'.'+num[1]; } else { input.value = num.toString().split('').reverse().join('').replace(/(?=\d*\.?)(\d{3})/g,'$1,').split('').reverse().join('').replace(/^[\,]/,'') }; } else { input.value = ""; } } </script> </head> <body> <label for="time">Files staged in the last -</label> <input name="time" id="time" type = "text" value="24" onkeypress="return isNumberKey(event)" onkeyup="format(this);"/> <span>hours</span> </body> </html> Hi I'm new to Javascript. This is how I get and set numeric values that are stored as character in object properties: Code: nIncrement = 5; nLeft = parseFloat(oObject.style.left); // get value as number nLeft = nLeft + nIncrement; // make some calcs... oObject.style.left = nLeft + 'px'; // convert numeric to character // or sometimes I just add a space: oObject.style.left = nLeft + ' '; // convert numeric to character Is that the correct way to do it? I feel uncomfortable doing it that way, could you advise me on how is the common way to do that in JS? Thanks. |
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