Javascript-форум - Открытие в новом окне

Есть скрипт выбора даты, помогите сделать его открытие в новом окне браузера)

вот часть скрипта:
var A_TCALDEF = {
	'months' : ['Январь', 'Февраль', 'Март', 'Апрель', 'Май', 'Июнь', 'Июль', 'Август', 'Сентябрь', 'Октябрь', 'Ноябрь', 'Декабрь'],
	'weekdays' : ['Вс', 'Пн', 'Вт', 'Ср', 'Чт', 'Пт', 'Сб'],
	'yearscroll': true, // show year scroller
	'weekstart': 0, // first day of week: 0-Su or 1-Mo
	'centyear'  : 70, // 2 digit years less than 'centyear' are in 20xx, othewise in 19xx.
	'imgpath' : 'img/' // directory with calendar images
};
// date parsing function
function f_tcalParseDate (s_date) {

	var re_date = /^\s*(\d{1,2})\/(\d{1,2})\/(\d{2,4})\s*$/;
	if (!re_date.exec(s_date))
		return alert ("Invalid date: '" + s_date + "'.\nAccepted format is mm/dd/yyyy.")
	var n_day = Number(RegExp.$2),
		n_month = Number(RegExp.$1),
		n_year = Number(RegExp.$3);
	
	if (n_year < 100)
		n_year += (n_year < this.a_tpl.centyear ? 2000 : 1900);
	if (n_month < 1 || n_month > 12)
		return alert ("Invalid month value: '" + n_month + "'.\nAllowed range is 01-12.");
	var d_numdays = new Date(n_year, n_month, 0);
	if (n_day > d_numdays.getDate())
		return alert("Invalid day of month value: '" + n_day + "'.\nAllowed range for selected month is 01 - " + d_numdays.getDate() + ".");

	return new Date (n_year, n_month - 1, n_day);
}
// date generating function
function f_tcalGenerDate (d_date) {
	return (
		 (d_date.getMonth() < 9 ? '0' : '') + (d_date.getMonth() + 1) + "/"
		+ (d_date.getDate() < 10 ? '0' : '') + d_date.getDate() + "/"
		+ d_date.getFullYear()
	);
}

// implementation
function tcal (a_cfg, a_tpl) {

	// apply default template if not specified
	if (!a_tpl)
		a_tpl = A_TCALDEF;

	// register in global collections
	if (!window.A_TCALS)
		window.A_TCALS = [];
	if (!window.A_TCALSIDX)
		window.A_TCALSIDX = [];
	
	this.s_id = a_cfg.id ? a_cfg.id : A_TCALS.length;
	window.A_TCALS[this.s_id] = this;
	window.A_TCALSIDX[window.A_TCALSIDX.length] = this;
	
	// assign methods
	this.f_show = f_tcalShow;
	this.f_hide = f_tcalHide;
	this.f_toggle = f_tcalToggle;
	this.f_update = f_tcalUpdate;
	this.f_relDate = f_tcalRelDate;
	this.f_parseDate = f_tcalParseDate;
	this.f_generDate = f_tcalGenerDate;
	
	// create calendar icon
	this.s_iconId = 'tcalico_' + this.s_id;
	this.e_icon = f_getElement(this.s_iconId);
	if (!this.e_icon) {
		document.write('<img src="' + a_tpl.imgpath + 'cal.gif" id="' + this.s_iconId + '" onclick="A_TCALS[\'' + this.s_id + '\'].f_toggle()" class="tcalIcon" alt="Open Calendar" />');
		this.e_icon = f_getElement(this.s_iconId);
	}
	// save received parameters
	this.a_cfg = a_cfg;
	this.a_tpl = a_tpl;
}

function f_tcalShow (d_date) {

	// find input field
	if (!this.a_cfg.controlname)
		throw("TC: control name is not specified");
	if (this.a_cfg.formname) {
		var e_form = document.forms[this.a_cfg.formname];
		if (!e_form)
			throw("TC: form '" + this.a_cfg.formname + "' can not be found");
		this.e_input = e_form.elements[this.a_cfg.controlname];
	}
	else
		this.e_input = f_getElement(this.a_cfg.controlname);

	if (!this.e_input || !this.e_input.tagName || this.e_input.tagName != 'INPUT')
		throw("TC: element '" + this.a_cfg.controlname + "' does not exist in "
			+ (this.a_cfg.formname ? "form '" + this.a_cfg.controlname + "'" : 'this document'));

	// dynamically create HTML elements if needed
	this.e_div = f_getElement('tcal');
	if (!this.e_div) {
		this.e_div = document.createElement("DIV");
		this.e_div.id = 'tcal';
		document.body.appendChild(this.e_div);
	}
	this.e_shade = f_getElement('tcalShade');
	if (!this.e_shade) {
		this.e_shade = document.createElement("DIV");
		this.e_shade.id = 'tcalShade';
		document.body.appendChild(this.e_shade);
	}
	this.e_iframe =  f_getElement('tcalIF');
	if (b_ieFix && !this.e_iframe) {
		this.e_iframe = document.createElement("IFRAME");
		this.e_iframe.style.filter = 'alpha(opacity=0)';
		this.e_iframe.id = 'tcalIF';
		this.e_iframe.src = this.a_tpl.imgpath + 'pixel.gif';
		document.body.appendChild(this.e_iframe);
	}
	
	// hide all calendars
	f_tcalHideAll();

	// generate HTML and show calendar
	this.e_icon = f_getElement(this.s_iconId);
	if (!this.f_update())
		return;

	this.e_div.style.visibility = 'visible';
	this.e_shade.style.visibility = 'visible';
	if (this.e_iframe)
		this.e_iframe.style.visibility = 'visible';

	// change icon and status
	this.e_icon.src = this.a_tpl.imgpath + 'no_cal.gif';
	this.e_icon.title = 'Close Calendar';
	this.b_visible = true;
}