C# RegEx script to find and close tags

Hello, this is really simple. I need a C# function that will find and close tags. make it a function I pass a string in and it returns the fixed string. Note: the string may be fine, it's just error checking. **example: would change:** <area shape="rect" coords="408,247,429,272" href="254" alt="" title=""> <area shape="rect" coords="408,247,429,272" href="254" alt="ssd" title="" > <area shape="rect" coords="408,247,429,272" href="254" alt="" title="sds" /> **to:** <area shape="rect" coords="408,247,429,272" href="254" alt="" title="" /> <area shape="rect" coords="408,247,429,272" href="254" alt="ssd" title="" /> <area shape="rect" coords="408,247,429,272" href="254" alt="" title="sds" />