//<![CDATA[
/**************************************
» Autor: Jonas Raoni Soares Silva
» Site: http://www.joninhas.ath.cx:666
**************************************/
// modified by Steve Powell deltasys.com 14-Jan-06
/*
WHAT IT DOES: makes the enter key work like the tab key on all form fields except textarea and select
TESTED WITH: IE 6, FireFox 1.5
USAGE: put the following 2 lines at the bottom of the page
<script type="text/javascript" src="/_includes/tab_on_enter_functions.js"></script>
<script type="text/javascript">TabOnEnter();</script>
*/
addEvent = function(o, e, f, s){
	var r = o[r = "_" + (e = "on" + e)] = o[r] || (o[e] ? [[o[e], o]] : []), a;
	r[r.length] = [f, s || o], o[e] = function(e){
		try{
			(e = e || event).preventDefault || (e.preventDefault = function(){e.returnValue = false;});
			e.stopPropagation || (e.stopPropagation = function(){e.cancelBubble = true;});
			e.target || (e.target = e.srcElement || null);
			e.key = (e.which + 1 || e.keyCode + 1) - 1 || 0;
		}catch(f){}
		for(f = r.length; f; r[--f] && (a = r[f][0], o = r[f][1], a.call ? a.call(o, e) : (o._ = a, o._(e), o._ = null)));
		e = null;
	}
};

removeEvent = function(o, e, f, s){
	for(var i = (e = o["_on" + e] || []).length; i;)
		if(e[--i] && e[i][0] == f && (s || o) == e[i][1])
			return delete e[i];
	return false;
};

TabOnEnter = function(){
	for( var f, i = ( f = document.forms ).length; i; addEvent( f[--i], "keypress", function( evt ){
		var el, l, k = evt.key == 13, e = evt.target;
		if( k && !/textarea|select/i.test( e.type ) && !evt.preventDefault() ){
			for( l = k = ( el = e.form.elements ).length; el[--k] != e; );
			while( !(e = el[ k = ++k * ( k < l ) ]).type || e.disabled );
			e.focus();
		}
	} ) );
};

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