how to get typed in text to appear on an item

[logoguy]

We have a website entitled adURLshirts.com and what we do there is offer custom shirts that have a URL or email address printed on them. What we want to accomplish is this:
We want to be able to allow our visitor the ability to type in a URL or email address or any other text and then have a graphic of a t-shirt load and show the text desired. Is there an easy way to do this? Anyone done anything similar or have suggestions?

[BC]

JavaScript isn't capable of this; however, Java or Flash is quite capable of doing this. The caveat is, you'd need to get an expert programmer in either language to create something like this for you.