//globals
var ie = (document.all) ? true : false;
var ns = (document.layers) ? true : false;
var dom = (!document.all && document.getElementById) ? true : false;
//nav

preload('clients_on','/images/btn_clients_on.gif');
preload('clients_off','/images/btn_clients_off.gif');
preload('donors_on','/images/btn_donors_on.gif');
preload('donors_off','/images/btn_donors_off.gif');
preload('employers_on','/images/btn_employers_on.gif');
preload('employers_off','/images/btn_employers_off.gif');
preload('volunteers_on','/images/btn_volunteers_on.gif');
preload('volunteers_off','/images/btn_volunteers_off.gif');
preload('donate_on','/images/btn_donate_on.jpg');
preload('donate_off','/images/btn_donate_off.jpg');
preload('about_on','/images/btn_about_on.gif');
preload('about_off','/images/btn_about_off.gif');
preload('contact_on','/images/btn_contact_on.gif');
preload('contact_off','/images/btn_contact_off.gif');

function preload(imgObj,imgSrc) {

	if (document.images) {

		eval(imgObj+' = new Image()')

		eval(imgObj+'.src = "'+imgSrc+'"')

	}

}

function chgImg(imgField,newImg) {

	if (ns) {eval('document.images[imgField].src = '+newImg+'.src')}

	if (ie) {document[imgField].src = eval(newImg+'.src')}

	if (dom) {document.images[imgField].src = eval(newImg+'.src');}

}

function clearSearch() {
	if (document.getElementById("edit-search-theme-form-1").value = "search") {
		document.getElementById("edit-search-theme-form-1").value = "";
	}
	
}