/* START applesearch object */		
if (!applesearch)	var applesearch = {};

applesearch.init = function () {
	// add applesearch css for non-safari, dom-capable browsers
	if ( navigator.userAgent.toLowerCase().indexOf('safari') < 0  && document.getElementById ) {
		this.clearBtn = false;
		
		// add style sheet if not safari
		var dummy = document.getElementById("dummy_css");
		if (dummy)	{
			dummy.href = "/css/applesearch/applesearch.css";
		}
	}
}

// called when on user input - toggles clear fld btn
applesearch.onChange = function (fldID, btnID) {
	// check whether to show delete button
	var fld = document.getElementById( fldID );
	var btn = document.getElementById( btnID );
	if (fld.value.length > 0 && !this.clearBtn) {
		btn.style.background = "url('/img/site/srch_r_f2.png') no-repeat top left";
		btn.fldID = fldID; // btn remembers it's field
		btn.onclick = this.clearBtnClick;
		this.clearBtn = true;
	} else if (fld.value.length == 0 && this.clearBtn) {
		btn.style.background = "url('/img/site/srch_r.png') no-repeat top left";
		btn.onclick = null;
		this.clearBtn = false;
	}
}


// clears field
applesearch.clearFld = function (fldID,btnID) {
	var fld = document.getElementById( fldID );
	fld.value = "";
	this.onChange(fldID,btnID);
}

// called by btn.onclick event handler - calls clearFld for this button
applesearch.clearBtnClick = function () {
	applesearch.clearFld(this.fldID, this.id);
}

/* END applesearch object */


function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}
addLoadEvent(applesearch.init);