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JavaScript - No Obvious Errors In A Pack Calculator Yet It Still Doesn't Work
This is a code for a simple calculator that requires the input of an Area and then calculates how many packs of product are then required to cover that area, rounding up to the next full pack, The results should be displayed in a simple HTML form but its not happening. I can't see any obvious errors. Am I missing something. Any help or ideas would be greatly appreciated. I might be making this more complicated than necessary. Thanks
In the <HEAD> Code: <script>
function packCalculation(){
if ( document.getElementById('coverage').value == '' )
{
alert('You must enter a number')
return false;
}
var coverage = parseFloat(document.getElementById('coverage').value); //declare coverage variable-->
if (isNaN(coverage))
{
alert('Please only enter numbers')
return false;
};
var coverage = parseFloat(document.getElementById('coverage').value);
var packSize = parseFloat(document.getElementById('pack-size').innerHTML);
var price = parseFloat(document.getElementById('price').value);
var packNumFinal = coverage/packSize; <!--work out how many packs are needed-->
var finalPrice = packNumFinal*price; <!--work out final price -->
document.getElementById('packsNeeded').innerHTML = packNumFinal.ceil(); <!--round up to the next full pack-->
document.getElementById('calcPrice').innerHTML = parseFloat(finalPrice).toFixed(2); <!--fix to 2 decimal points-->
document.getElementById('results').className='show';
return false;
}
</script>
Then in the <BODY> Code: <form id="packC"> <label>Enter Area to cover ( sq m ):</label> <input type="text" name="coverage" id="coverage" /> <p><span>Pack Coverage (sq m):</span> <span id="pack-size">1.982</span></p> <input type="hidden" name="price" id="price" value="<?php echo $priceFormat; ?>" /> <input type="button" value="Calculate" id="calculate" onclick="packCalculation()"/> <!-- results --> <span class="packs">Packs:</span> <div id="packsNeeded"></div><br/> <span class="cost">Total:</span> <div id="calcPrice"></div> </form> Similar TutorialsIt can be found right he http://arkdesigns.ca/AttilaKomaromiJavaCalculator.htm I have javascript enabled on my browsers but it still doesn't work. I see the calculator but pushing the buttons does nothing Any help is appreciated My code is: Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Javascript Calculator</title>
<style>
<!-- CSS STYLES GO HERE -->
.container {
width:500px;
height:500px;
}
.equ {
width:99%;
height:20px;
font-size:20px;
text-align:right;
margin-bottom:15px;
}
table {
border:1px solid black;
padding:5px;
width:100%;
}
table td {
margin:3px;
text-align:center;
width:20%;
}
.buttons {
width:100%;
height:50px;
font-size:15px;
}
</style>
<script type="text/javascript" src="javascript.js">
</script>
</head>
<body>
<div class="container">
<table cellspacing="0">
<tr>
<td colspan="5"><input class="equ" type="input" disabled="disabled" id="equation" value="0"/><input type="hidden" id="previousType" value="-1"/></td>
</tr>
<tr>
<td><input class="buttons" type="button" name="sin" value="sin" onclick="solve ('sin')" /></td>
<td><input class="buttons" type="button" name="cos" value="cos" onclick="solve ('cos')" /></td>
<td><input class="buttons" type="button" name="tan" value="tan" onclick="solve('tan')" /></td>
<td><input class="buttons" type="button" name="sqrt" value="√" onclick="solve('sqrt')" /></td>
</tr>
<tr>
<td><input class="buttons" type="button" name="back" value="←" onclick="remove ();"/></td>
<td colspan="2"><input class="buttons" type="button" name="erase" value="C" onclick="clear_equation ();" /></td>
<td><input class="buttons" type="button" name="divide" value="/" onclick="equation (this.value, 1)"/></td>
</tr>
<tr>
<td><input class="buttons" type="button" name="seven" value="7" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="eight" value="8" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="nine" value="9" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="multiple" value="*" onclick="equation (this.value, 1)"/></td>
</tr>
<tr>
<td><input class="buttons" type="button" name="four" value="4" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="five" value="5" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="six" value="6" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="subtract" value="-" onclick="equation (this.value, 1)"/></td>
</tr>
<tr>
<td><input class="buttons" type="button" name="one" value="1" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="two" value="2" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="three" value="3" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="plus" value="+" onclick="equation (this.value, 1)"/></td>
</tr>
<tr>
<td colspan="2"><input class="buttons" type="button" name="zero" value="0" onclick="equation (this.value, 2)"/></td>
<td><input class="buttons" type="button" name="decimal" value="." onclick="equation (this.value, 3)"/></td>
<td><input class="buttons" type="button" name="equal" value="=" onclick="solve ('');"/></td>
</tr>
</table>
</div>
</body>
</html>
I'm making a calculator with javascript inside of my html, but I can't figure out the right way to produce a working ^ sign. I've searched online for 4 hours now. Does anyone happen to know what I should type? Here's my code Code: <form name="Calc" style="position: fixed; top: 25px; right: 5px; background: #5F4A29;" action="">
<table border="6">
<tr>
<td colspan="4"><input type="text" name="Input" size="25" /></td>
</tr>
<tr>
<td><input class="button" type="button" value=" c " onclick="Calc.Input.value = ''" /></td>
<td></td>
<td></td>
<td><input class="button" type="button" value=" = " onclick="Calc.Input.value = eval(Calc.Input.value)" /></td>
<tr>
</tr>
<td></td>
<td><input class="button" type="button" value=" ( " onclick="Calc.Input.value += '('" /></td>
<td><input class="button" type="button" value=" ) " onclick="Calc.Input.value += ')'" /></td>
<td><input class="button" type="button" value=" ^ " onclick="Calc.Input.value += '^(x,y)'" /></td>
</tr>
<tr>
<td><input class="button" type="button" value=" 1 " onclick="Calc.Input.value += '1'" /></td>
<td><input class="button" type="button" value=" 2 " onclick="Calc.Input.value += '2'" /></td>
<td><input class="button" type="button" value=" 3 " onclick="Calc.Input.value += '3'" /></td>
<td><input class="button" type="button" value=" + " onclick="Calc.Input.value += '+'" /></td>
</tr>
<tr>
<td><input class="button" type="button" value=" 4 " onclick="Calc.Input.value += '4'" /></td>
<td><input class="button" type="button" value=" 5 " onclick="Calc.Input.value += '5'" /></td>
<td><input class="button" type="button" value=" 6 " onclick="Calc.Input.value += '6'" /></td>
<td><input class="button" type="button" value=" - " onclick="Calc.Input.value += '-'" /></td>
</tr>
<tr>
<td><input class="button" type="button" value=" 7 " onclick="Calc.Input.value += '7'" /></td>
<td><input class="button" type="button" value=" 8 " onclick="Calc.Input.value += '8'" /></td>
<td><input class="button" type="button" value=" 9 " onclick="Calc.Input.value += '9'" /></td>
<td><input class="button" type="button" value=" * " onclick="Calc.Input.value += '*'" /></td>
</tr>
<tr>
<td></td>
<td><input class="button" type="button" value=" 0 " onclick="Calc.Input.value += '0'" /></td>
<td><input class="button" type="button" value=" . " onclick="Calc.Input.value += '.'" /></td>
<td><input class="button" type="button" value=" / " onclick="Calc.Input.value += '/'" /></td>
</tr>
</table>
</form>
Hi guys i'm new to the world of programming and have been watching some videos on youtube by thenewboston to get to know Java. In one of his tutorials he shows you how to make a basic calculator but i wanted to improve it by adding the option to choose which operation you want to perform. However not being familiar with code i cannot think of a way to put it so that it is error free.I do also have a seperate class file which coresponds with the second paragraph.The errors appear in the if statements because of the characters * / - +. I am currently using eclipse to write my code as it is very useful for showing you your mistakes. Thanks in advance. Code: Scanner tut7 = new Scanner(System.in); double fnum, snum, answer; System.out.println("Enter First Number Please:"); fnum = tut7.nextDouble(); System.out.println("Enter Second Number Please:"); snum = tut7.nextDouble(); Scanner opinput = new Scanner(System.in); Operation OperationObject = new Operation(); System.out.println("Enter What Operation You Want to Perform: "); String oper = opinput.nextLine(); OperationObject.calc(oper); if (oper = * ){ answer = fnum * snum; System.out.print("The Answer is: "); System.out.println(answer); }else{ if (oper = / ){ answer = fnum / snum; System.out.print("The Answer is: "); System.out.println(answer); }else{ if (oper = + ){ answer = fnum + snum; System.out.print("The Answer is: "); System.out.println(answer); }else{ if (oper = - ){ answer = fnum - snum; System.out.print("The Answer is: "); System.out.println(answer); }else{ System.out.println("Invalid Operation!!!"); } } } already solved
Hey Guys, I've been working on a WP site that uses a handful of plugins - several of which include java-script files. I've been having trouble with one of the plugins and have started the debugging process and noticed that the page the problem is occurring on shows a few java-script errors. http://proshotsrange.com/test-contact-page/ What do the "Object Not Supported" errors mean - and what would it entail to fix them? Thanks in advance. Code: Webpage Error Details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0) Timestamp: Mon, 22 Nov 2010 16:43:02 UTC Message: Object doesn't support this property or method Line: 143 Char: 2 Code: 0 URI: http://proshotsrange.com/wp-content/plugins/wp-e-commerce/js/wp-e-commerce.js?ver=3.7.58 Message: Object doesn't support this property or method Line: 4621 Char: 7 Code: 0 URI: http://proshotsrange.com/wp-includes/js/prototype.js?ver=1.6.1 Message: 'style' is null or not an object Line: 33 Char: 6 Code: 0 URI: http://proshotsrange.com/wp-content/plugins/lightbox-2/lightbox.js?ver=1.8 Thanks to this forum, I finally got my calculator working and want to share it with everyone who can use it. The code below divides the time input by the distance input and displays the resulting pace in a min:sec format. Enter 12 miles, for example, and 1 hour, 33 minutes and 15 seconds, and the code displays 7:46 mpm (minutes per mile). My first version uses one function to do everything, but this morning I decided to teach myself how one function passes stuff to another. So I began trying to perform the min:sec conversion in a function named Pace2minsec and pass the result to the Pace function for display in the form. After several failures, I learned that a function returns its calculation to whatever code calls it. Ah ha, I thought, I need to have Pace call Pace2minsec. Yeah, pretty basic stuff but I am a raw beginner with Javascript, and thought there might be others here like me who could benefit from my mistakes. Even after discovering the call-return process, I had to get the names of the variables correct before it would work. One mistake I made was thinking that I could have a variable with the same name in both functions. Wrong. Even though they were both inside their own function and therefore local variables, apparently, since one function called the other, the names had to be different. In both functions, I had a variable named totalsec, but only when I renamed it totalseconds in the first function did my code work. Another glich was discovering that I had to tell the second function what variable it had to use for its operation. My first stab at that was to put the line Pace2minsec(minsec) in the first function. Wrong. Then I tried Pace2minsec(totalsec). Wrong again. And finally, Pace2minsec(totalseconds) which worked fine. Probably obvious to most, but it sure wasn't to me. Trial and error scripting! But I'm getting there, one principle at a time... <CODE> <html> <head> <script> function Pace(D, H, M, S, form) // Is form really necessary? { var dist = parseFloat(D); // Makes entry a number? var hours = parseFloat(H); var mins = parseFloat(M); var secs = parseFloat(S); var pacedecimal = (hours*60 + mins + secs/60) / dist; // Total minutes in decimal var totalseconds = pacedecimal*60; // Total seconds in decimal form.pace.value =Pace2minsec(totalseconds) + " " + "mpm"; // Tell Pace2minsec what variable to use? } function Pace2minsec(totalsec) { var minsec = ''; sec = Math.round(totalsec%60); // remainder of totalsec div by 60 min = Math.round((totalsec-sec)/60); // total seconds minus remainder minsec = min + (sec>9?":":":0") + sec; // min:sec format adds :0 if sec<10 return(minsec); // Pass min:sec format to Pace, the calling function } </script> </head> <body style="margin-top:100px; text-align:center; font-family:arial; background-color:silver;"> <form name="pacer"> <table style="font-size:14px; font-weight:bold;" cellspacing="0" border="0"> <tr> <td>DIST</td> <td><input type="text" name="dist" size="3"></td> <td width="8"></td> <td>TIME</td> <td><input type="text" name="hours" size="1">:</td> <td><input type="text" name="mins" size="1">:</td> <td><input type="text" name="secs" size="1"></td> <td width="24"></td> <td><input TYPE="button" VALUE="Pace" onClick="Pace(this.form.dist.value, this.form.hours.value, this.form.mins.value, this.form.secs.value, this.form)"></td> <td width="4"></td> <td><input type="text" name="pace" size="8"></td> <td width="6"></td> <td><input TYPE="reset" VALUE="Clear" onClick="clearForm(this.form)"></td> </tr> </table> </form> </body> /html> </CODE> I have a few tabs on my website. They're each set to the corresponding id in the JS file. It's supposed to add #tab-1 to the end of the URL in the users browser when it's clicked. For example, when a user is at mypage.com and they click on the tab, it ads mypage.com/#tab-1 to the end. How come it doesn't do what I want when I click it though? Here's an example of how it's setup. HTML: <a href="#tab-1" id="tab1">Text</a> JavaScript: document.getElementById("tab1").onclick = function(){ this.href += "#tab-1"; } This is a script which has a window slide down on the page and a user can choose yes/no to continue. It works in all browsers other than IE...any help please? If you need more info, please let me know. Thanks. <script language="JavaScript" type="text/javascript"> <!-- var allowpop=1; function popWin(){ var ppl="popLayer";var objppl=findObj(ppl); if (objppl==null){return;}// if the layer does not exist, do nothing. var args=arguments,movetoX=parseInt(args[0]),movetoY=parseInt(args[1]),movespeed=parseInt(args[2]); var cycle=10,pxl=""; if(!document.layers){objppl=objppl.style;} if(objppl.tmofn!=null){clearTimeout(objppl.tmofn);} var pplcoordX=parseInt(objppl.left),pplcoordY=parseInt(objppl.top); var xX=movetoX,yY=movetoY;if((pplcoordX!=movetoX)||(pplcoordY!=movetoY)){ var moveX=((movetoX-pplcoordX)/movespeed),moveY=((movetoY-pplcoordY)/movespeed); moveX=(moveX>0)?Math.ceil(moveX):Math.floor(moveX);movetoX=pplcoordX+moveX; moveY=(moveY>0)?Math.ceil(moveY):Math.floor(moveY);movetoY=pplcoordY+moveY; if((parseInt(navigator.appVersion)>4||navigator.userAgent.indexOf("MSIE")>-1) && (!window.opera)) {pxl="px";} if (moveX!=0){eval("objppl.left='" + movetoX + pxl + "'");} if (moveY != 0) {eval("objppl.top = '" + movetoY + pxl + "'");} var sFunction = "popWin(" + xX + "," + yY + "," + movespeed+ ")"; objppl.tmofn = setTimeout(sFunction,cycle); } } function findObj(theObj, theDoc){ var p, i, foundObj; if(!theDoc) theDoc = document; if((p = theObj.indexOf("?")) > 0 && parent.frames.length) {theDoc = parent.frames[theObj.substring(p+1)].document; theObj = theObj.substring(0,p);} if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj]; for (i=0; !foundObj && i < theDoc.forms.length; i++) foundObj = theDoc.forms[i][theObj]; for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) foundObj = findObj(theObj,theDoc.layers[i].document); if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj); return foundObj; } function hideLayer(layername){ layer=findObj(layername); if(layer.style){layer=layer.style;} layer.visibility='hidden'; } // --> </script> Heya, I wrote the following page in a day or two (please don't mind the layout). Everything seems to work excellent, apart from in Firefox (FF) in which it doesn't seem to work at all. None of the other browsers have any trouble with it. I'm pretty new to Javascript (everything you see in the source code is pretty much all I know) and I have absolutely no idea why it doesn't work in Firefox. The page in question could be found [link has been removed]. It's all there is to it. So yeah, how to actually make this work in FF? Thanks a whole bunch in advance! Much appreciated. I've got a form textarea on my site, which after being submitted is stripped by my php file. Then my javascript kicks in and does some analysis of the entered text. However everytime the user entered a hard return within the textarea my javascript gives me an error 'tekenreeks niet afgesloten' which means something like 'string is not closed'. Therefore I decided to replace all occurences of chr(10) and chr(13) with ok2 (just some random characters), I did this with php which worked fine, and I didn't get the javascript error. However I need to reshow the entered text (original) to the user, so I need to restore the old values. I tried Code: result.waarde.replace('ok2', 'chr(13)');
but it doesn't work, as it still displays ok2. I'm no expert in javascript, but how can I replace those characters by the hard returns? Oh yeah I'll show some more coding, perhaps the error can be found the Code: result.waarde.replace('mdw', 'chr(13)');container.innerHTML = result.waarde;
and in my html: Code: <div id='waarde' style="width:500px;"></div> Hi! What am doing wrong? The script works -- identifies blank fields -- but the second function (change_subject) is ignored. This is the script: Code: <HEAD>
<script>
function is_filled()
{
if (form_1.realname.value=="")
{
alert("Please enter your name")
form_1.realname.focus()
return false
}
if (form_1.subject.value=="")
{
alert("Please enter a subject")
form_1.message.focus()
return false
}
else
return true
};
function change_subject
{
form_1.subject.value="form_1.realname.value + '_' + form_1.subject.value"
};
</script>
</HEAD>
This is the FORM (used for MSA FormMail): Code: <form name="form_1"; onSubmit="return is_filled()"; on Submit="change_subject()"; method="post"; action="http://gb2gf.org/cgi-sys/FormMail.cgi">
<input type="hidden" name="recipient" value="drt@gb2gf.org">
<input type="hidden" name="required" value="greeting,realname,city_state,email_1,email_2,message">
<input type="hidden" name="sort" value="order:greeting,realname,city_state,email_1,email_2,message">
<input type="hidden" name="redirect" value="http://www.gb2gf.org/thanks.htm">
<!-- Input fields here -->
</form>
Thanks! Dr. T. Hi! I'm new to JavaScript and I've done some small adjustments to my clients site, but it won't show properly in IE (the shadowbox js at least.). I thought js was accepted in all newer browsers. Do you have a quick fix or idea on why it doesn't work? You can view source on my site, I use mootools, and shadowbox/corners and rightclick blocker. Is it generally a 'bad thing' to use js in webpages I want everyone to view in the same way? I tried the same effects with CSS but it's not supported in the same way corss-browser, unfortunately. The 'no selection' CSS class I have on the site is also not accepted in IE. It's very annoying! http://santinacrolla.ihaarr.com/p thank you in advance! hello... script doesn't work.. it does work in IE but not in another browser like mozilla,opera & safari? what should I do?.. Code: //Current HTML of page
var html="";
//View of the page, Normal (Design), HTML, Preview
var currentview=0;
//Hold window objects for the color, table and properties dialogs
var table_dialog, color_dialog, properties_dialog;
//Current color action, ForeColor, or BackColor,
//used for communication between PageCreate window and Color dialog window
var pp;
//Is used to disable use of design tools in HTML or Preview mode
var enabletoolbar=false;
//Variable counter used to index the search in the document
var n=0;
function InitEditor(){
//Init editor in design mode,
maineditor.document.designMode=docmode;
//Write a blank page
WriteDefaultPage();
//Disable context menu
maineditor.document.oncontextmenu=new Function("return false;");
//Set focus to the editor
maineditor.focus();
}
function EditorView(view){
//Changes editor view to Normal, HTML, and Preview
if(currentview==1){
//If the last view was HTML then get the HTML edited by user in HTML mode
html=maineditor.document.body.innerText;
}
//If the last mode was Normal then get the whole HTML content of the page
else html=maineditor.document.all.tags("HTML")[0].outerHTML;
if(view==0){
//Normal Mode
EnableToolbar(true);
maineditor.location="about:blank";
maineditor.document.designMode=docmode;
maineditor.document.open("text/html");
maineditor.document.write(html);
maineditor.document.close();
maineditor.document.oncontextmenu=new Function("return false;");
maineditor.focus();
}
if(view==1){
//HTML Mode
EnableToolbar(false);
maineditor.location="about:blank";
maineditor.document.designMode=docmode;
WriteDefaultPage();
HTMLView();
maineditor.document.oncontextmenu=new Function("return false;");
}
if(view==2){
//Preview Mode
EnableToolbar(false);
maineditor.location="about:blank";
//Disable page editing
maineditor.document.designMode="Inherit";
//Write the HTML of the page
maineditor.document.open("text/html");
maineditor.document.write(html);
maineditor.document.close();
//Enable context menu
maineditor.document.oncontextmenu=new Function("return true;");
}
//Set current view
currentview=view;
}
function EnableToolbar(enable){
//Enable or disable toolbar
enabletoolbar=enable;
}
function OpenFile(){
if(window.confirm("Do you want to save changes in the current document?")){
//Show Save As Dialog
maineditor.document.execCommand("SaveAs");
}
fileopen_dialog.style.visibility="visible";
}
function OpenSelectedFile(){
//Check if the file is an HTML page
if(document.fileselect.thefile.value.indexOf(".htm")==-1){
window.alert("The selected file is not an HTML page, please select a valid HTML file");
return;
}
//Hide the open file dialog
fileopen_dialog.style.visibility="hidden";
//Create the FSO object
var fso=new ActiveXObject("Scripting.FileSystemObject");
//Open the selected file
var f=fso.OpenTextFile(document.fileselect.thefile.value);
//Get the content of the file
var thehtml=f.ReadAll();
//Close the file
f.close();
//Write a blank page
maineditor.window.location="about:blank";
//Write the HTML content
maineditor.document.open("text/html");
maineditor.document.write(thehtml);
maineditor.document.close();
//Set focus to editor
maineditor.focus();
}
function WriteDefaultPage(){
//Writes a blank HTML page in the editor
var pagehtml="<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; " +
"charset=windows-1252\">\n<meta name=\"GENERATOR\" content=\"PageCreate\">\n" +
"<title>New Page</title>\n</head>\n<body>\n</body>\n</html>";
maineditor.document.open("text/html");
maineditor.document.write(pagehtml);
maineditor.document.close();
}
function NewPage(){
if(window.confirm("Do you want to save changes in the current document?")){
//Show Save As Dialog
maineditor.document.execCommand("SaveAs");
}
//Write a blank page
maineditor.window.location="about:blank";
WriteDefaultPage();
//Set focus to editor
maineditor.focus();
}
function HTMLView(){
//Switch to HTML view
maineditor.document.body.innerHTML="";
maineditor.document.body.innerText=html;
}
function TableOn(table, on){
//Highlights the table on which the mouse is over
if(on) table.style.backgroundColor="#95AFFF";
else table.style.backgroundColor="#82DF82";
}
function ToolbarOn(toolon){
//Highlights on or off the current toolbar
//Get the toolbar button on which the mouse is over
var tool=event.srcElement;
//Change background color
if(toolon){
tool.style.backgroundColor="#B4A0FE";
tool.style.borderColor="#000000";
}
else{
tool.style.backgroundColor="#D1D1D1";
tool.style.borderColor="#D1D1D1";
}
}
function FindInPage(showdialog){
//Shows the Find and Replace Dialog
var display="visible";
if(showdialog==false) display="hidden";
find_dialog.style.visibility=display;
if(showdialog!=false) document.find.findwhat.focus();
}
function FindIt(str, replacestr, newstr){
//This functions searchs for a string in the document
//and if specified then replaces it with a new string
if(str==""){
//If no string to search entered
alert("Enter a string to search");
document.find.findwhat.focus();
return;
}
//Creates a range in the document
txt = maineditor.document.body.createTextRange();
//Loop to find the string in the document
for (i = 0; i <= n && (found = txt.findText(str)) != false; i++) {
txt.moveStart("character", 1);
txt.moveEnd("textedit");
}
if(found) {
//If founded select it and scroll into view
txt.moveStart("character", -1);
txt.findText(str);
//If replace is specified then replace the match with the new string
if(replacestr) txt.text=newstr;
txt.select();
txt.scrollIntoView();
n++;
}
else {
if (n > 0) {
window.alert("There are no more matches");
n=0;
}
// Not found anywhere, give message.
else
window.alert("\"" + str + "\" was not founded in document");
}
}
function InsertHTML(newhtml){
//Inserts HTML in the selection of the document
maineditor.focus();
var selpoint=maineditor.document.selection.createRange();
selpoint.pasteHTML(newhtml);
}
function GetSelectedText(){
//Get the selection of the document
maineditor.focus();
var selpoint=maineditor.document.selection.createRange();
var seltext=selpoint.text;
return seltext;
}
function InsertNewImage(){
if(enabletoolbar==false) return;
maineditor.focus();
//Open Insert Image Dialog
maineditor.document.execCommand("insertimage", true, null);
}
function InsertForm(){
//Creates a new form
var formmethod=window.prompt("Choose form method: GET | POST", "POST");
var formaction=window.prompt("Choose form action:", "http://");
InsertHTML("<div style=\"background-Color:#C0C0C0\"><form method=\"" + formmethod + "\" action=\"" + formaction + "\">\n<p> </p></form></div>");
}
function InsertFormControl(control){
maineditor.focus();
//Inserts a form control
maineditor.document.execCommand(control, true, null);
}
function CreateNewLink(){
//Inserts a link in the selected text
if(enabletoolbar==false) return;
var linktext=GetSelectedText();
if(linktext=="") return;
var url=window.prompt("Enter a URL for the new link:", "http://");
if(url!=null){
InsertHTML("<a href=\"" + url + "\">" + linktext + "</a>");
}
maineditor.focus();
}
function InsertTable(){
//Open Table Dialog
table_dialog=window.open("table.htm", "newtable", "top=100,left=100,height=300,width=400,scrollbars=no");
}
function CreateTable(tr, tc, ta, tb, tp, ts, tw, tt){
//Creates a new table
var tablewidth="";
if(tw!=""){
tablewidth=" width=\"" + tw + tt + "\"";
}
var thtml="<table border=\"" + tb + "\" cellpadding=\"" + tp + "\" cellspacing=\"" + ts + "\"" + tablewidth + ">";
tr=parseInt(tr);
tc=parseInt(tc);
for(r=0;r<tr;r++){
thtml+="<tr>";
for(c=0;c<tc;c++){
thtml+="<td></td>";
}
thtml+="</tr>";
}
thtml+="</table>";
InsertHTML(thtml);
table_dialog.close();
}
function EditPage(){
properties_dialog=window.open("properties.htm", "editpage", "top=100,left=100,height=275,width=387,scrollbars=no");
}
function EditPageProperties(pt, pfc, pbgc, pbgi, usewatermark, pbgs){
maineditor.document.title=pt;
maineditor.document.body.text=pfc;
maineditor.document.body.bgColor=pbgc;
maineditor.document.body.background=pbgi;
if(usewatermark) maineditor.document.body.bgProperties="fixed";
else maineditor.document.body.bgProperties="";
if(pbgs!=""){
var pagehtml=maineditor.document.all.tags("HTML")[0].outerHTML;
var bodytag= pagehtml.toLowerCase().indexOf("<body");
if(bodytag==-1) return;
var beforebodytag= pagehtml.substring(0, bodytag);
var afterbodytag= pagehtml.substring(bodytag, pagehtml.length);
var pagehtml=beforebodytag + "<bgsound src=\"" + pbgs + "\">" + afterbodytag;
maineditor.document.open("text/html");
maineditor.document.write(pagehtml);
maineditor.document.close();
}
properties_dialog.close();
maineditor.focus();
}
function ChangeForeColor(){
//Show the Color dialog to edit Fore Color of text selected
if(GetSelectedText()!=""){
pp="EditForeColor";
color_dialog=window.open("color.htm", "colorpicker", "top=100,left=100,height=270,width=500,scrollbars=no");
}
}
function EditForeColor(thecolor){
maineditor.focus();
//Change fore color of text selected
maineditor.document.execCommand("forecolor", false, thecolor);
//Close Color Dialog
color_dialog.close();
}
function ChangeBackColor(){
//Show the Color dialog to edit Back Color of text selected
if(GetSelectedText()!=""){
pp="EditBackColor";
color_dialog=window.open("color.htm?p=EditBackColor", "colorpicker", "top=100,left=100,height=270,width=500,scrollbars=no");
}
}
function EditBackColor(thecolor){
maineditor.focus();
//Change back color of text selected
maineditor.document.execCommand("backcolor", false, thecolor);
//Close Color Dialog
color_dialog.close();
}
function ChangeFont(font){
//Changes the font of the selected text
maineditor.focus();
maineditor.document.execCommand("fontname", false, font);
}
function ChangeFontSize(size){
//Changes the font size of the selected text
maineditor.focus();
maineditor.document.execCommand("fontsize", false, size);
}
function DesignTools(tool){
//Activates design tool
if(enabletoolbar==false){
window.alert("You must switch into normal view to do this");
return;
}
maineditor.focus();
maineditor.document.execCommand(tool, true, null);
}
Below is code using the onmouseover event, but it doesn't work. The only thing that appears in the status bar is the URL. What am I doing wrong? Code: <a href="http://codingforums.com" onmouseover="window.status='This is an OnMouseOver event'; return true" onmouseout="window.status=' '; return true">Put your mouse here to see status info change at bottom.</a> Code: <html>
<head>
<script>
function color() {
var newColor=new Array('#00f','#f00','#ff0');
var i=0;
for (i=0;i<=3;i++)
{
document.getElementByTagName(span).style.display=newColor[i];
}
}
color();
</script>
<div>
<span>make this text blue</span>
<span>make this text red</span>
<span>make this text yellow</span>
</div>
</body>
</html>
It should make the first blue, second red, and third yellow yes? Hi, I'm trying to mirror two textboxes with the following: Code: <form>
<input type="text" id="0" name="tb1[]" onkeyup="document.getElementsByName('tb2[]')[this.id].setAttribute('value',this.value)">
<input type="text" id="0" name="tb2[]" onkeyup="document.getElementsByName('tb1[]')[this.id].setAttribute('value',this.value)">
</form>
If I start by picking the first box and typing it appears automatically in the second textbox. It works the same if if i start by picking the second box. However after entering text into one of the textboxes and having it mirrored, if I select the other textbox and make a change it isn't mirrored. Any suggestions? Thanks! i am using the following code to set the height of the div based on its contents. it works fine in IE but not in mozilla. Do anybody help me to solve this? Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function fnCheckScroll() {
document.getElementById('btnCheck').innerHTML = "The value of scrollHeight is: " + oID_1.scrollHeight + "px";
}
function fnSetHeight() {
oID_1.style.height = oID_1.scrollHeight;
return false;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<h1>scrollHeight Property Sample</h1>
<p>This sample demonstrates the use of the <b>scrollHeight</b> property to retrieve
the height of the viewable content.</p>
<div id="oID_1" style="overflow: scroll; height: 200px; width: 150px; text-align: left">
The <b>scrollHeight</b> property is read-only, allowing you to obtain the
actual height of the scrollable content. Even though the height of this
<b>div</b> is 200 pixels, the height inside the scrolling text box might
be less, since the wrapped text may not use the entire area within the object.
The <b>scrollHeight</b> dimension may be useful for a variety of reasons;
for example, the height of the <b>div</b> could be set to the <b>scrollHeight</b>
to conserve horizontal space while respecting the set width as a maximum.
</div>
<p><button id="btnCheck" onclick="fnCheckScroll()">Check scrollHeight
</button></p>
<p><button id="btnSetIt" onclick="return(fnSetHeight());">Set DIV height to scrollHeight
</button></p>
<!-- START_PAGE_FOOTER --><br>
<br>
<br>
</div>
</form>
</body>
</html>
Hello, I'm new to javascript and html5. I've been having problems with some simple(?) lines of code. Code: var ctex;
var totalX = 400;
var totalY = 300;
var racpad = new Image();
racpad.src = 'Imgs/paddle.gif';
var brixadow = new Image();
brixadow.src = 'Imgs/brickLight.gif';
function initCnv()
{
canvas = document.getElementById('canvas01');
ctex = canvas.getContext('2d');
AppStep();
}
function clearcv(x)
{
ctex.clearRect(0, 0, totalX, totalY);
ctex.fillStyle = x;
ctex.beginPath();
ctex.rect(0, 0, totalX, totalY);
ctex.closePath();
ctex.fill();
}
function AppStep()
{
clearcv('black');
ctex.drawImage(racpad, totalX/2, totalY-50);
}
What I'm trying to do is to simply turn the canvas black and show a small gif on it. Upon executing initCnv(), the canvas turns black as it should, while the sprite image doesn't show up at all. I can't figure out what's going on, I scoured the code for syntax errors, even tried other image formats but to no avail. Image paths are also correct. Maybe the problem's an extremely noobish one, but I still couldn't get a clue, so I thought I'd ask for help around here. Thanks for your time! My switch function just goes to the default. I've double double checked the file paths of the image on the page and it's right. So I'm not sure what's going on. here's what I got: Code: function change2(picName,imgName)
{
switch (document[picName].src)
{
case document[picName].src= "images/leaf_shapes/leaf_auriculate.gif":
document[picName].src = "images/leaf_shapes/crenate/leaf_elliptic_crenate.gif";
break;
case document[picName].src= "images/leaf_shapes/leaf_cordate.gif":
document[picName].src= "images/leaf_shapes/serrate/leaf_elliptic_serrate.gif";
break;
default:
document[picName].src= "images/leaf_shapes/transparent1.gif";
}
}
i am using the following code to set the height of the div based on its contents. it works fine in IE but not in mozilla. Do anybody help me to solve this? <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script type="text/javascript"> function fnCheckScroll() { document.getElementById('btnCheck').innerHTML = "The value of scrollHeight is: " + oID_1.scrollHeight + "px"; } function fnSetHeight() { oID_1.style.height = oID_1.scrollHeight; return false; } </script> </head> <body> <form id="form1" runat="server"> <div> <h1>scrollHeight Property Sample</h1> <p>This sample demonstrates the use of the <b>scrollHeight</b> property to retrieve the height of the viewable content.</p> <div id="oID_1" style="overflow: scroll; height: 200px; width: 150px; text-align: left"> The <b>scrollHeight</b> property is read-only, allowing you to obtain the actual height of the scrollable content. Even though the height of this <b>div</b> is 200 pixels, the height inside the scrolling text box might be less, since the wrapped text may not use the entire area within the object. The <b>scrollHeight</b> dimension may be useful for a variety of reasons; for example, the height of the <b>div</b> could be set to the <b>scrollHeight</b> to conserve horizontal space while respecting the set width as a maximum. </div> <p><button id="btnCheck" onclick="fnCheckScroll()">Check scrollHeight </button></p> <p><button id="btnSetIt" onclick="return(fnSetHeight());">Set DIV height to scrollHeight </button></p> <!-- START_PAGE_FOOTER --><br> <br> <br> </div> </form> </body> </html> |
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