// JavaScript Document

/************************************************************
 ** Clears a field
 ** By: 	Joshua Sowin (fireandknowledge.org)
 ** Edited by: Warren Diggles (warrendiggles.com) to work with photoshelter search
 ** HTML: <input type="text" name="I_DSC"
 **			id="I_DSC" value="Find Photos"
 ** 		onfocus="clearInput('I_DSC', 'Find Photos')" 
 ** 		onblur="clearInput('I_DSC', 'Find Photos')" size="30" maxlength="100" class="search_box" />
 ***********************************************************/
function clearInput(field_id, term_to_clear) {
	
	// Clear input if it matches default value
	if (document.getElementById(field_id).value == term_to_clear ) {
		document.getElementById(field_id).value = '';
	}
	
	// If the value is blank, then put back term
	else if (document.getElementById(field_id).value == '' ) {
		document.getElementById(field_id).value = term_to_clear;
	}
} // end clearSearch()