function fclear(name){
	txt = '<input type="file" name="' + name + '"/>';
	$('#fileup_'+name).html(txt);
}

$.fn.extend({
	insertAtCaret: function(v) {
		var o = this.get(0);
		o.focus();
		if (jQuery.browser.msie) {
			var r = document.selection.createRange();
			r.text = v;
			r.select();
		} else {
			var s = o.value;
			var p = o.selectionStart;
			var np = p + v.length;
			o.value = s.substr(0, p) + v + s.substr(p);
			o.setSelectionRange(np, np);
		}
	}
});