if (typeof popup_width != 'undefined' && popup_width == '' || typeof popup_width == 'undefined') {
var popup_width = '650';
}

if (typeof popup_height != 'undefined' && popup_height == '' || typeof popup_height == 'undefined') {
var popup_height = '450';
}

if (typeof popup_xalign != 'undefined' && popup_xalign == '' || typeof popup_xalign == 'undefined') {
var popup_xalign = '20';
}

if (typeof popup_yalign != 'undefined' && popup_yalign == '' || typeof popup_yalign == 'undefined') {
var popup_yalign = '20';
}



function helisey(url){

var properties = new Array /* parameters for popup window */
("width="+popup_width+"","height="+popup_height+"","status=yes","menubar=no","toolbar=no",
 "directories=no","location=no","resizeable=yes","screenX="+popup_xalign+"",
 "screenY="+popup_yalign+"","left="+popup_xalign+"","top="+popup_yalign+"","scrollbars=yes");

heli_window = window.open(url,'heli_window',properties);
heli_window.focus();
}