Tag Archive for 'Javascript'

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Convert Celsius to Fahrenheit Online

Published on August 16, 2009 in Online Tools. Closed Tags: , , , , , , , , , .

Since I’ve been having lots of visits in my wxWidgets version of the Celsius to Fahrenheit converter, I’ve decided to prepare an online javascript version which lets you easily make the conversion.

Celsius:
Fahrenheit:



GNU GPL v3 Convert Celsius to Fahrenheit Online is licensed under the GNU GPL v3…

Here is the complete source code:

<script type="text/javascript">
// *****************************************************************************
// Description: Convert Celsius to Fahrenheit Online by NeoEGM
// Author: Ezequiel Miravalles
// Last modification: 16/08/2009
// URL: http://www.neoegm.com/tech/online-tools/convert-celsius-to-fahrenheit-online/
// *****************************************************************************

/*******************************************************************************
	Copyright (C) 2009 Ezequiel Gastón Miravalles

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/

function isNumber(x)
{ 
  return ( (typeof x === typeof 1) && (null !== x) && isFinite(x) );	//From http://snippets.dzone.com/posts/show/6937
}

function Round(number, digits)
{
	return Math.round(number * Math.pow(10,digits)) / Math.pow(10, digits);
}

function CelsiusToFahrenheit(celsius, fahrenheit)
{
	var num = celsius.value;
	
	if (num == "" || !isNumber(Number(num)))
		alert("Please type a number");
	else
		fahrenheit.value=Round((9/5)*num+32, 2);
}

function FahrenheitToCelsius(fahrenheit, celsius)
{
	var num = fahrenheit.value;
	
	if (num == "" || !isNumber(Number(num)))
		alert("Please type a number");
	else
		celsius.value=Round((5/9)*(num-32), 2);
}
</script>

<table>
<tr>
<td>Celsius:</td>
<td><input type="text" name="celsius_field" id="celsius_field" style="width:100px" /></td>
<td><input type="button" value="To Fahrenheit" onclick="CelsiusToFahrenheit($('celsius_field'), $('fahrenheit_field'))" /></td>
</tr>
<tr>
<td>Fahrenheit:</td>
<td><input type="text" name="fahrenheit_field" id="fahrenheit_field" style="width:100px" /></td>
<td><input type="button" value="To Celsius" onclick="FahrenheitToCelsius($('fahrenheit_field'), $('celsius_field'))" /></td>
</tr>
</table>

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Move Facebook Events Box to Top

Published on August 14, 2009 in Scripts. Closed Tags: , , , , , , , , , , , , , , , , , , .

Facebook has got very interesting features… One of them is the possibility of having a reminder of your friend’s birthdays and events you have subscribed to…

But (there’s always a but 8-))… They’re not in a very handy place…

So… I’ve decided to make a script to move them to the top :)

FacebookEventsToTop

How do I install it??

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Random password generator

Published on July 23, 2009 in Online Tools. Closed Tags: , , , , , , , , .

As an easy and quick to use alternative to the Excel random password generator, I’ve made this online Javascript adaptation of the random password generation function code… You can watch its source code below…

Characters


Uppercase Lowercase Numbers

Random Password


GNU GPL v3The code is licensed under the GNU GPL v3…



Just in case you want to see the function code without looking into the source code:

/*************************************************************************************************
Random Password Generator by NeoEGM

Copyright (C) 2009 Ezequiel Gastón Miravalles

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*************************************************************************************************/

/*************************************************************************************************
Software: Random Password Generator by NeoEGM
Author: Ezequiel Gastón Miravalles
Website: http://www.neoegm.com/software/random-password-generator/
License: GNU GPL v3 (read above)
*************************************************************************************************/

function RandomPassword(Length, Upper, Numbers, Lower)
{
	Upper = typeof(Upper) != 'undefined' ? Upper : true;
	Numbers = typeof(Numbers) != 'undefined' ? Numbers : true;
	Lower = typeof(Lower) != 'undefined' ? Lower : true;
	
    if (!Upper && !Lower && !Numbers)
		return "";

    var Ret = "";
    var Num;
    var Repeat;

    Chars = 26 * 2 + 10;	//26 (a-z) + 26 (A-Z) + 10 (0-9)
	//a-z = 97-122
	//A-Z = 65-90
	//0-9 = 48-57

    for (i = 1; i <= Length; i++)
	{
        Repeat = false;

        Num = Math.floor(Math.random()*Chars);

        if (Num < 26)
            if (Lower)
                Ret = Ret + String.fromCharCode(Num + 97);
            else
                Repeat = true;
        else if (Num < 52)
            if (Upper)
                Ret = Ret + String.fromCharCode(Num - 26 + 65);
            else
                Repeat = true;
        else if (Num < 62)
            if (Numbers)
                Ret = Ret + String.fromCharCode(Num - 52 + 48);
            else
                Repeat = true;

        if (Repeat)
            i--;
	}

    return Ret;
}

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