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.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 = "#f0f0f0 url('/images/srch_r_f2.gif') 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 = "#f0f0f0 url('/images/srch_r.gif') 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);
}