Creating Ext.XTemplate member functions

1. We begin by creating our sample data and our basic Ext.XTemplate in the same
way as we did in the previous recipe:
var bugData = [{
id: 1,
title: 'Bug 1',
description: 'Bug 1 Description',
status: 'In Progress',
severity: 1
}
...
];

var tpl = new Ext.XTemplate('',
'',
' ',
'Title',
'Description',
'Severity',
'
','',
' style="background-color: pink; border: 2px solid
#FF0000;"
>','{title}',
'{description}',
'{severity}',
'
','
','
',{
isHighPriority: function(severity){
return severity > 3
}
}
);
tpl.overwrite(Ext.getBody(), bugData);