<div class="search">
  <input type="text" name="<?php echo $prefix ?>FindWhat" id="<?php echo $prefix ?>FindWhat" class="searchTerm" placeholder="Αναζήτηση..." value="<?php echo $FindWhat1;?>"  onfocus="gotoEndOfText(this);"  >
<button class="searchButton"  onclick="submitForm('<?php echo $prefix ?>');" ></button>
</div>