/*!
 * jQuery plugin: fieldSelection - v0.1.0 - last change: 2006-12-16
 * (c) 2006 Alex Brem <alex@0xab.cd> - http://blog.0xab.cd
 */

(function($) {
	$.fn.getSelection = function() {

		var e = this.jquery ? this[0] : this;

		return (

			/* mozilla / dom 3.0 */
			('selectionStart' in e && function() {
				var l = e.selectionEnd - e.selectionStart;
				return { start: e.selectionStart, end: e.selectionEnd, length: l, text: e.value.substr(e.selectionStart, l) };
			}) ||

			/* exploder */
			(document.selection && function() {

				e.focus();

				var r = document.selection.createRange();
				if (r == null) {
					return { start: 0, end: e.value.length, length: 0 }
				}

				var re = e.createTextRange();
				var rc = re.duplicate();
				re.moveToBookmark(r.getBookmark());
				rc.setEndPoint('EndToStart', re);

				return { start: rc.text.length, end: rc.text.length + r.text.length, length: r.text.length, text: r.text };
			}) ||

			/* browser not supported */
			function() {
				return { start: 0, end: e.value.length, length: 0 };
			}

		)();

	}
	$.fn.replaceSelection = function() {

		var e = this.jquery ? this[0] : this;
		var text = arguments[0] || '';

		return (

			/* mozilla / dom 3.0 */
			('selectionStart' in e && function() {
				e.value = e.value.substr(0, e.selectionStart) + text + e.value.substr(e.selectionEnd, e.value.length);
				return this;
			}) ||

			/* exploder */
			(document.selection && function() {
				e.focus();
				document.selection.createRange().text = text;
				return this;
			}) ||

			/* browser not supported */
			function() {
				e.value += text;
				return this;
			}

		)();
	}
})(jQuery);