Javascript Yii: Session script - php

Question

Okay, so basically whenever someone gets on the site the icons are all the same color (White) I want this code to do the follow thing : Whenever someone goes to another page (by clicking on one of the other icons) the icon of the page where he is going should have a different color (blue, this is done by loading another image) but only that page, this should also stay whenever he refreshes the page?
This is the current code that I have for a single icon, its not working yet and im not sure what is wrong..
<?php Yii::app()->session['/home'] = '1';
$home = Yii::app()->session['/home'];
//echo Yii::app()->session['home']; // Prints "value"
if (!empty($home)){ ?>
<a href="<?php echo $this->createUrl("/admin/survey/sa/index")."/home"; ?>">
<img src='<?php echo $sImageURL;?>home.png' alt='<?php $clang->eT("Default administration page");?>' width='<?php echo $iconsize;?>' height='<?php echo $iconsize;?>'/></a>
<?php
}
else{?>
<a href="<?php echo $this->createUrl("/admin/survey/sa/index")."/home1" ?>">
<img src='<?php echo $sImageURL;?>home1.png' alt='<?php $clang->eT("Default administration page");?>' width='<?php echo $iconsize;?>' height='<?php echo $iconsize;?>'/></a>
<?php
}
?>

Answer 1

I agree with Ivo; I think it would be best to do this using CSS classes. You would have the default CSS class have a background image of home1.png, and the blue one have a background image of home.png. If I were doing this, I would use CSS sprites as well.
But, working with what you've got. Here's one way to do it in Yii:
<?php
// Get the current URI
$currentUri = Yii::app()->request->requestUri;
if($currentUri == '/admin/survey/sa/index'){
?>
<a href="<?php echo $this->createUrl("/admin/survey/sa/index")."/home1" ?>">
<img src='<?php echo $sImageURL;?>home1.png' alt='<?php $clang->eT("Default administration page");?>' width='<?php echo $iconsize;?>' height='<?php echo $iconsize;?>'/>
</a>
<?php
}else{
?>
<a href="<?php echo $this->createUrl("/admin/survey/sa/index")."/home1" ?>">
<img src='<?php echo $sImageURL;?>home1.png' alt='<?php $clang->eT("Default administration page");?>' width='<?php echo $iconsize;?>' height='<?php echo $iconsize;?>'/>
</a>
<?php
}
?>
For your other icons you can then reuse the $currentUri variable. You don't need to set any sessions. When you refresh the page the icon will still remain colored.