jQuery.textnode = {
	hasText : 
	function(a) {
		for (var i=0; i<a.childNodes.length; i++) {
			if (a.childNodes[i].nodeType == 3) return true;
		} 
	},

	addText : 
	function(a, input, settings) { 
		settings = jQuery.extend({replace:false},settings);

		if (input == null || input == '') return;
		if (a.childNodes == 0) { a.html(input); return; }

		var children = [];
		// have to wrap text in a single element in order 
		// to get all the child nodes (including text)
		var nodes=jQuery('<i>'+input+'</i>')[0].childNodes;

		for (var i = a.childNodes.length-1; i >= 0; i--){ 
			if (a.childNodes[i].nodeType == 3) {
				for (var j = nodes.length-1; j>=0; j--) {
					children.unshift(nodes[j]);
				}
				if (!settings.replace)
					children.unshift(a.childNodes[i]);
			} else {
				children.unshift(a.childNodes[i]);
			}
		} 
		jQuery(a).empty();
		for (var i=0; i<children.length; i++) {
			jQuery(a).append(children[i]);
		}
	}, 
};

jQuery.extend(jQuery.expr[':'], { 
	hastext: "jQuery.textnode.hasText(a)",
});

jQuery.fn.appendToText = function(input) { 
	return this.each(function(){ 
		jQuery.textnode.addText(this, input, {replace:false});
	}) 
}; 

jQuery.fn.replaceText = function(input) { 
	return this.each(function(){ 
		jQuery.textnode.addText(this, input, {replace:true});
	}) 
};