If you are short of space on your form you can use this code to help inform the user as to what to key in to the input field:
<textarea name="text" onFocus="if(this.value==this.defaultValue)value=''" onBlur="if(this.value=='')value=this.defaultValue;">Message:</textarea>
<input name="search" type="text" onfocus="if(this.value==this.defaultValue)value=''" onblur="if(this.value=='')value=this.defaultValue;" value="Search" size="10" maxlength="200">