[fiot]

TextField.prototype.setCaretIndex = function(i)
{
	Selection.setFocus(this);
	if (this.type != "input") {
		return;
	}
	if (i == undefined || i<0 || i>this.text.length || isNaN(i)) {
		i = this.text.length;
	}
	Selection.setSelection(0, i);
	this.replaceSel(this.text.slice(0, i));
};

use:my_textField.setCaretIndex(1);