Warning this is an old version.

<script type="text/javascript" src="js/swfobject.js"></script>
<script type="text/javascript">
swfobject.embedSWF(
"open-flash-chart.swf", "my_chart", "550", "200",
"9.0.0", "expressInstall.swf",
{"data-file":"gallery/line-on-click.php"} );
</script>

<script type="text/javascript">

function line_1( index )
{
hello( 1, index );
}

function line_2( index )
{
hello( 2, index );
}

function hello( line, index )
{
alert( 'hello from line '+ line +' -> '+ index );
}

</script>

<?php

include '../php-ofc-library/open-flash-chart.php';

$data_1 = array();
$data_2 = array();

for( $i=0; $i<6.2; $i+=0.2 )
{
  $data_1[] = (sin($i) * 1.9) + 7;
  $data_2[] = (sin($i) * 1.9) + 10;
}

$title = new title( date("D M d Y") );

$line_1 = new line();
$line_1->set_values( $data_1 );
$line_1->set_colour( '#EB7600' );
$line_1->set_halo_size( 0 );
$line_1->set_width( 2 );
$line_1->set_dot_size( 4 );
$line_1->set_on_click( "line_1" );
$line_1->set_key( "Orange Crush Baby", 10 );

$line_2 = new line();
$line_2->set_values( $data_2 );
$line_2->set_colour( '#7BED09' );
$line_2->set_halo_size( 2 );
$line_2->set_width( 1 );
$line_2->set_dot_size( 4 );
$line_2->set_on_click( "line_2" );
$line_2->set_key( "Green Machine", 10 );

$y = new y_axis();
$y->set_range( 0, 15, 5 );


$chart = new open_flash_chart();
$chart->set_title( $title );
$chart->add_element( $line_1 );
$chart->add_element( $line_2 );
$chart->set_y_axis( $y );

echo $chart->toPrettyString();