Help with regex (search/replace) please

Hey guys, As many of you might know, i totally suck at regex..so would really appreciate some help here. Basically i have a html page with a lot of textboxes,radios,checkboxes etc i need your help in the form of a regex so that when i give it the name and value it gives me the entire code of that checkbox. for example here are 2 checkboxes: <input type="checkbox" name="something" value="1" /> <input type="checkbox" name="something2" value="2" id="something" onClick="javascript_code_etc()" onSomething="lots of js cod here()" /> so if i want the second checkbox code i was thinking of something like this: $the_name="something2"; $the_value="2"; $fetched=getCheckboxFromHTML($the_name,$the_value); and then if successful the variable $fetched would contain <input type="checkbox" name="something2" value="2" id="something" onClick="javascript_code_etc()" onSomething="lots of js cod here()" /> the idea is that i would use the contents of $fetch to add some code before the end just before the greater than symbol, and do a str_replace(). What do you think? Critique of my logic above too is welcome! Thanks! Ryan