formatting with value-of tags

I'm having an issue with the format line on the value-of tag. I have no guarantee that the values I'm going to print aren't null, so I'm currently doing something like this: 
 
<pre class='_prettyXprint _lang-auto _linenums:0'>
@>
String(row['country_code']).replace('null','') +
String(row['area_code']).replace('null','') +
String(row['contact_number']).replace('null','')
</value-of></pre>
 
The problem is, that will print a line that looks like the following if my values are null: () - 
 
I would much rather have this line not exist if there is no data. Am I best off manually formatting the line with javascript? Thanks to anyone who posts.

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Comments

Rhall

<pre class='_prettyXprint _lang-auto _linenums:0'><value-of>
if (row['contact_number']) {
if (row['area_code']) {
if (row['country_code']) {
row['country_code'];
}
row['area_code'];
}
row['contact_number'];
}
</value-of></pre>
 
Came up with this, but it just prints the final row - Does BIRT not handle nested if's or am I just working too late on a Friday?

KavithaD

Is your requirement is like this if contact_number is null you want to display nothing else
you need to display contact_number ,

if (row['contact_number']== null) {
''
}else{
row['contact_number']
}

Is it the same case for area_code & country_code??
Could you please elaborate bit more on your requirement?

Thank you,
Kavitha