explode and implode

Ok, here is my situation today. I have a form submitting information in a text box, I want to use explode() to break it up into individual words using the space character. I then want to separate the array into two pieces, I want to implode elements 0..24 into a string and implode 25..xx into a separate string. I read the manual on implode but it doesn't seem to be clear, can I implode certain elements of the array or just the whole thing? If I can't implode certain elements is there a function I can use to split the array into two pieces and then use implode on each piece? Thanks in advance. --Craig Henderson SAE, Adgrafix Corporation