Element.implement({
	tidy: function(){
		this.set('value', this.get('value').tidy());
	},
	getTextInRange: function(start, end) {
		return this.get('value').substring(start, end);
	},
	getSelectedText: function() {
		if (Browser.Engine.trident){
			return document.selection.createRange().text;
		}
		return this.get('value').substring(this.getSelectionStart(), this.getSelectionEnd());
	},
	getIERanges: function(){
		this.focus();
		var range = document.selection.createRange();
		var re = this.createTextRange();
		var dupe = re.duplicate();
		re.moveToBookmark(range.getBookmark());
		dupe.setEndPoint('EndToStart', re);
		return { 
			start: dupe.text.length, 
			end: dupe.text.length + range.text.length, 
			length: range.text.length, 
			text: range.text 
		};
	},
	getSelectionStart: function() {
		if (Browser.Engine.trident){
			return this.getIERanges().start;
		}
		return this.selectionStart;
	},
	getSelectionEnd: function() {
		if (Browser.Engine.trident){
			return this.getIERanges().end;
		}
		return this.selectionEnd;
	},
	getSelectedRange: function() {
		return {
			start: this.getSelectionStart(),
			end: this.getSelectionEnd()
		};
	},
	setCaretPosition: function(pos) {
		if(pos == 'end') {
			pos = this.get('value').length;
		}
		this.selectRange(pos, pos);
		return this;
	},
	getCaretPosition: function() {
		return this.getSelectedRange().start;
	},
	selectRange: function(start, end) {
		this.focus();
		if(Browser.Engine.trident) {
			var range = this.createTextRange();
			range.collapse(true);
			range.moveStart('character', start);
			range.moveEnd('character', end - start);
			range.select();
			return this;
		}
		this.setSelectionRange(start, end);
		return this;
	},
	insertAtCursor: function(value, select) {
		var start = this.getSelectionStart();
		var end = this.getSelectionEnd();
		this.set('value', this.get('value').substring(0, start) + value + this.get('value').substring(end, this.get('value').length));
 		if ($pick(select, true)){ 
			this.selectRange(start, start + value.length);
		} else {
			this.setCaretPosition(start + value.length);
		}
		return this;
	},
	insertAroundCursor: function(options, select) {
		options = $extend({
			before: '',
			defaultMiddle: 'SOMETHING HERE',
			after: ''
		}, options);
		value = this.getSelectedText() || options.defaultMiddle;
		var start = this.getSelectionStart();
		var end = this.getSelectionEnd();
		if(start == end) {
			var text = this.get('value');
			this.set('value', text.substring(0, start) + options.before + value + options.after + text.substring(end, text.length));
			this.selectRange(start + options.before.length, end + options.before.length + value.length);
			text = null;
		} else {
			text = this.get('value').substring(start, end);
			this.set('value', this.get('value').substring(0, start) + options.before + text + options.after + this.get('value').substring(end, this.get('value').length));
			var selStart = start + options.before.length;
			if ($pick(select, true)){
				this.selectRange(selStart, selStart + text.length);
			} else {
				this.setCaretPosition(selStart + text.length);
			}
		}	
		return this;
	}
});