Mike's Site Blog

Open window HTML validator friendly

Mike — Thu, 19 Nov 2009 02:42:22 +0000

Some time ago I found this script which enables you to open links in a new window. Typically links in html were something like this:

Mike's Site = Mike's Site

The instruction target=”_blank” was the one that make the link open in a new window. Now the W3C decided that you shouldn’t use that anymore. Browsers still support it, but if you want to html validate your site, that would throw you an error. So here is a little javascript function that fix that:

function externalLinks() {
if (!document.getElementsByTagName) return;
var anchors = document.getElementsByTagName(“a”);
for (var i=0; i var anchor = anchors[i];
if (anchor.getAttribute(“href”) && anchor.getAttribute(“rel”) == “external”)
anchor.target = “_blank”;
}
}

Usage: simply put in your links the attribute rel=”external” and include that function and then call it after all the document have been loaded with something like:

window.onload = externalLinks;

Hope that would help you, contact me if you need further indications. I would love to help Me@mikesite.me

Multidimensional Arrays on JavaScript

Mike — Fri, 13 Nov 2009 03:42:05 +0000

Here is the code:
var myArray=MultiDimensionalArray(2,3);
function MultiDimensionalArray(iRows,iCols)
{
var i; var j; var a = new Array(iRows);
for (i=0; i < iRows; i++)
{
a[i] = new Array(iCols);
for (j=0; j < iCols; j++)
{
a[i][j] = “”;
}
}
return(a);
}

Now you can use myArray[0..1][0..2]

Trim on JavaScript

Mike — Sun, 22 Mar 2009 03:35:53 +0000

Here is a little function you might find useful to enable trim function on JavaScript:

function trim(myString)
{
for(i=0; i< myString.length; )
{
if(myString.charAt(i)==" ")
myString = myString.substring(i+1, myString.length);
else
break;
}

for(i= myString.length-1; i>=0; i= myString.length-1)
{
if(myString.charAt(i)==” “)
myString = myString.substring(0,i);
else
break;
}

return myString;
}

PHP echo usage tip

Mike — Mon, 25 Feb 2008 11:21:53 +0000

If you have done at least a “hello world” in php, you might be aware of the function echo. Along the Internet I have seen people passing as an argument of the echo function a concatenation of any given values. The function syntax of echo should be something like this:

void echo ( string $arg1 [, string $... ] )

So as you might imagine you could do something like this:

Instead of:

Saving your self an additional step of concatenate 2 or more values before each output. Specially in large scale scripts this should be helpful.