/* TheBook e-commerce software developed at 
** Anna Clements (http://www.annaclements.com.au) 
** by Luke Giuliani (coldflame at coldflame.mine.nu). 
**
** $Id$
**
*/

var criteriaCount = 0;

function addExtraSearchCriterion()
{
	var templateStr = document.getElementById('extraSearchFieldTemplate').innerHTML;
	templateStr = templateStr.replace(/INSERT_FIELD_NUM/g, criteriaCount);
	
	newNode = document.createElement("div");
	newNode.setAttribute('id', 'extraSearchField' + criteriaCount);
	newNode.innerHTML = templateStr;
	document.getElementById('searchCriterion').appendChild(newNode);
	
	criteriaCount++;

}

function removeSearchOption(sid)
{
	document.getElementById('extraSearchField' + sid).innerHTML = '';
}