\ keeps getting trimmed

I have this code which works but when I put it in my page (uses Smarty) the \ before the 's' and after the 'n' get trimmed.

<script type="text/javascript">

var str="Hello my name is Andy Hello my name is John";
document.write(str = str.replace(/\sHello/g, " n\Hello"));

</script>

Code (markup):

Is there a substatute to \ that won't be stripped? I have tried the {literal}{/literal} thing, doesn't fix it.

 

The backslash is a special character and probably should be escaped in your case. Like this:

document.write(str = str.replace(/\\sHello/g, " n\\Hello"));

Code (markup):

And sure it isn't supposed to be \n instead of n\ ?

 

Try:

{literal}
<script type="text/javascript">

var str="Hello my name is Andy Hello my name is John";
document.write(str = str.replace(/\sHello/g, "\nHello"));

</script>
{/literal}

Code (markup):