McTavish Solutions

Bing Search Engine Error

2009-12-03T19:08:00.000-08:00

But I do want this web page - the home page of bing. Refreshing didn't help either!

Javascript - Detecting the enter key being pressed

2006-09-19T23:42:00.000-07:00

I had to develop a solution where the user could press enter or return from an input field and the correct submit button would be clicked. We could only use one form for the whole page.

This can be added to an external js file.

//In the onFocus event of the form input text element call the function
setSubmitBtn with the following parameters setSubmitBtn(form id, button id) e.g.
onfocus="setSubmitBtn('frmHitList', 'btnSave')"

//Global variable for the submit button set.
//Used by functions setSubmitBtn and keyPressed.
var submitBtnSet = null;
var btnFormId = null;

//Checks if the key pressed is the enter/return key
//If it is then click the button set by setSubmitBtn event
function keyPressed (Event) {
if (!Event)
Event = window.event;
var keyCodePressed = Event.keyCode;
if (keyCodePressed == 13) {
if (submitBtnSet != null) {
document.forms[btnFormId].elements[submitBtnSet].click();
submitBtnSet = null;
btnFormId = null;
return false;
}
}
}

//Set the submit button name which should be clicked when the user
//presses the enter or return key
function setSubmitBtn(formId, submitBtn) {
btnFormId = formId;
submitBtnSet = submitBtn;
}

//Calls the keyPressed function with every key pressed
document.onkeypress = keyPressed;

Spyware and Malware

2006-03-04T08:20:00.000-08:00

A friend had a problem with his computer running slow, crashing a lot, not booting up properly and many other abnormal things.

After a bit of looking around I discovered he had a lot of Malware and Spyware including a couple of Rootkits.

I used the Rootkitrevealer from System Internals to search for the hidden rootkits. I used Spybot from R & D to clean up a lot of the spyware and malware. I then used RegCleaner to clean up the registry.

The main guilty files I found were:
c:\WINNT\system32\drivers\fipmkchw.sys
c:\WINNT\system32\wsnxress.exe
c:\Programme\Vircanon (The folder contained a number of dodgy files - according to different anti-spyware companies - and a subfolder with logs)

They were all invisible to both Windows Explorer and MS-DOS. I removed the hard drive and added as a slave to another computer. The offending files were now visible.

I used the Autorun program from System Internals to find the registry key used at the startup.

The computer now boots up 1 minute 35 seconds faster.

Excellent Shortcuts for Eclipse

2005-01-31T03:32:00.000-08:00

I found this pdf which lists shortcuts for Eclipse - http://eclipse-tools.sourceforge.net/shortcuts.html

I have found a number of them very useful.

Maximum characters in a textarea

2004-12-02T23:35:00.000-08:00

This is one close to one I developed myself but I can't find it anymore.



<HEAD>
<SCRIPT LANGUAGE="JavaScript">







</script>
</HEAD>

<BODY>

<center>
<form name=myform action="YOUR-SCRIPT.CGI">
<font size="1" face="arial, helvetica, sans-serif"> ( You may enter up to 125 characters. )<br>
<textarea name=message wrap=physical cols=28 rows=4 onKeyDown="textCounter(this.form.message,this.form.remLen,125);" onKeyUp="textCounter(this.form.message,this.form.remLen,125);"></textarea>
<br>
<input readonly type=text name=remLen size=3 maxlength=3 value="125"> characters left</font>
</form>
</center>
<p><center>
<font face="arial, helvetica" SIZE="-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>

Javascript - set focus on an element but after three letters

2004-12-02T22:59:00.000-08:00

<SCRIPT LANGUAGE=JavaScript>
function focusOnField(sField)
{

// Returns the element whose ID is specified.
var tr=document.getElementById(sField).createTextRange();
tr.moveStart('character',3);
tr.select();
// document.getElementById("elementName").focus();
}
// Ende -->
</script>
<input name="elementNamelogin" value="ABC" size="8" maxlength="8" onkeyup="focusOnField(this.form,this);">

Calculate the number of characters in a textarea

2004-12-02T22:30:00.000-08:00

Calculate the number of characters in a textarea

<script LANGUAGE="JavaScript">
//onClick event - place in the submit button tag - onclick="return textCounter('element', 'Description', 2000);"

function textCounter(field, fieldname, maxlimit){
var numCharacters = eval('document.frm_daten.'+field+'.value.length');
if (numCharacters > maxlimit) { // if too long
var extraCharacters = numCharacters - maxlimit;
var msg = 'You have entered ' + extraCharacters + ' extra characters in the ' +
fieldname + '. The maximum is ' + maxlimit;
alert(msg);
return false;
}
}
//onChange event place in the textarea tags - onchange="return maxLength('htmlPageTopContainer_frm_daten_inTxtAr_description', 'Description', 2000);"

function maxLength(field, fieldlabel, maxlimit){
var numCharacters = eval('document.frm_daten.'+field+'.value.length');
if (numCharacters > maxlimit) {

var extraCharacters = numCharacters - maxlimit;

var msg = 'You have entered ' + extraCharacters + ' extra characters in the ' +
fieldname + '. The maximum is ' + maxlimit;

alert(msg);
}
}
</script>

Javascript - confirm code - e.g. Are you really sure you want to cancel your changes?

2004-11-12T22:31:00.000-08:00

The good old javascript confirm e.g. Are you really sure you want to cancel your changes?

Place this in the header part of the html:

Add the text in bold to your submit button.

Looping through ASP Server Variables

2004-10-21T09:20:00.000-07:00

Place this code in the body of your asp file and run it. It will then display all the server variables.

<%

dim obj

for each obj in Request.ServerVariables

response.write "Object Name: " & obj & "<BR>"
& "Object Value: " & Request.ServerVariables(obj) &
"<BR><BR>"

next

Configuring generated code and comments - class version in Eclipse

2004-10-19T19:36:00.000-07:00

I looked high and low for this and then contacted a guru friend who sent me the code for the version control which is then added to the top of each new class by default.

Add in Window/Preferences/Java/Code Style/Code Templates/Code/New Java files

/*
* ${file_name}
* Created on ${date}
*
* Copyright McTavish Solutions
* Project: Project Name
*/
${package_declaration}

${typecomment}
${type_declaration}

Add in Window/Preferences/Java/Code Style/Code Templates/Comments/Types

/**
* @author ${user}
* @version $$Revision: 1.0 $$
*
*/

Add this in and then CVS will change it with each update made

Javascript - Reading variables in another js file

2004-10-13T04:09:00.000-07:00

I was asked about this so here is the answwer. You have to include this in your original js

<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript"
SRC="yourOtherFileName.js"></SCRIPT>

All the variables defined in the other file will now be available to the script. All files and partial scripts are loaded in the page, so that it becomes like an include file. It can however cause problems, such as when 2 global variables have the same name.

Restaurant Puzzler answer...

2004-09-27T08:00:00.000-07:00

The answer is that the figures will not add to £30 because they are not from the same equation. Equation 1: What's been paid is £25 for the meal - which is in the till, and £2 for the tip - in the waiter's pocket, leaving the men with £1 each, ie £3, which all adds up to £30. Equation 2: The men have each paid £9 for the meal and the tip together, ie £27, and they each have a £1 in their pocket, ie £3, which all adds up to £30.

Restaurant puzzler...

2004-09-24T01:24:00.000-07:00

Three men eat at a restaurant. The bill comes to £25. They each pay £10. When the waiter brings the £5 change they take back £1 each and leave a £2 tip. So each man has paid £9, which totals £27. The waiter has the £2 tip, which makes £29, so where's the other £1 gone?

Answer to follow later

One selected option selects the option in another select box

2004-09-24T00:40:00.000-07:00

I was asked by a colleague if this was possible - so I quickly wrote a javascript function. If you want to go by the value of anoption you will have to amend the code slightly.

<html>
<title>One selected option selects the option in another select box</title>
<head>
<script language="JavaScript">
function setSelectedOption() {
//get the number of the selected option - first option is 0
var selectedOption = document.formName.selectName1.selectedIndex;

//Check that one has been selected
if (selectedOption > -1) {
//set the same selected option for the second select box
document.formName.selectName2.options[selectedOption].selected = true;
}

}
</script>
</head>
<body>
<form name="formName"><div align="center">
<p>
<select name="selectName1" size="1"onchange="setSelectedOption();">
<option value="" selected="selected">-----------</option>
<option value="1">First Choice</option>
<option value="2">Second Choice</option>
<option value="3">Third Choice</option>
</select>
</p>
<p>
<select name="selectName2" size="1">
<option value="" selected="selected">---------</option>
<option value="1">First Choice</option>
<option value="2">Second Choice</option>
<option value="3">Third Choice</option>
</select>
</p>
</div></form>
</body>
</html>

Toggling check box selection

2004-09-23T03:41:00.000-07:00

I had to write this code to ensure that if a certain checkbox was selected it deselected another one and vic-versa. Why not use a radio button group I hear you ask, but if more than one select box can be selected from a group of 5 then this is not possible with radio buttons.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Checkbox checking...</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript">

function toggleA() {
var materialA = document.getElementsByName("cBox_A")[0];
var materialB = document.getElementsByName("cBox_B")[0];
materialA.checked = true;
materialB.checked = false;

}

function toggleB() {
var materialA = document.getElementsByName("cBox_A")[0];
var materialB = document.getElementsByName("cBox_B")[0];
materialA.checked = false;
materialB.checked = true;

}

</script>
</head>
<body>
<form action="next_file.asp" method="post" enctype="multipart/form-data" name="form_name" id="form_name">
<input name="cBox_A" type="checkbox" value="Value A" onClick="toggleA()">Checkbox A<br>
<input name="cBox_B" type="checkbox" value="Value B" onClick="toggleB()">Checkbox B</form>
</body>
</html>

Simple javascript alert

2004-09-21T01:34:00.000-07:00

I was just asked by a colleague about a very simple javascript problem - he wanted a confirmation pop up but his code wasn't working properly. So here is the code

script
//confirmation - onclick event
function checkDelete(){
if(confirm("Are you really sure you want to format your hard drive?"))
{
return true;
}
else
{
return false;
}
}

/script

the button code
input name="btn_delete" type="button" id="btn_delete" value="Delete" onClick="return checkDelete();"

He had missed out the return in the onClick event.

Hello World

2004-09-21T01:11:00.000-07:00

I thought I'd just give this blogging a go. I read quite a few but have thought it was too much work to maintain it. We will see.