how to create link for the first letter of each string in a sentence in xslt?

[maka28]

Say i have a variable\[code\]<wish>Hi jony</wish>\[/code\]I have to traverse the wish element and i have to create link for first letter of the string in the element.output should be\[code\]<a href="http://stackoverflow.com/questions/10407936/#H">H</a><a href="http://stackoverflow.com/questions/10407936/#j">j</a>.\[/code\]