.NET 2/Safari 5.0 compatibility with hidden fields

[jamestpaul]

I'm having some difficulty with Safari users and hidden fields in my .NET 2 asp application. There is a hidden field that gets loaded with the contents of a div in my form. When the user submits the form, it hits the this javascript procedure:

function LoadHidden()
{
document.getElementById('MainFormTx').value=htmlEn code(document.getElementById('mainDiv').innerHTML) ;
}

***plesae excuse the hack-ish nature of this code, it was needed in an hurry***

This is then passed to a response form that will send the contents of the hidden field (MainFormTx) to the recipient. This works 9 times out of 10 and has been thoroughly tested in IE and FF in the PC environments. The latest time I saw this was with Safari 5.0, but the Platform was 'Unknown'. I have required field validation on the fields and I know that the validation is working, but somehow the transfer of the innherHTML of the div isn't working. Any ideas are greatly appreciated.

Here is the code for the htmlEncode function:

function htmlEncode(s) {
var str = new String(s);
str = str.replace(/&/g, "&");
str = str.replace(/</g, "&lt;");
str = str.replace(/>/g, "&gt;");
str = str.replace(/"/g, "&quot;");
str=str.replace(/'script'/g,"")
return str;
}

[jamestpaul]

I should add the code for the htmlEncode function in case that comes up:

function htmlEncode(s) {
var str = new String(s);
str = str.replace(/&/g, "&amp;");
str = str.replace(/</g, "&lt;");
str = str.replace(/>/g, "&gt;");
str = str.replace(/"/g, "&quot;");
str=str.replace(/'script'/g,"")
return str;
}