var ua        = navigator.userAgent.toLowerCase();
var is_major  = parseInt(navigator.appVersion);

var is_win    = (navigator.appVersion.indexOf("Win") != -1);
var is_ie     = ((ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (ua.indexOf("msie 5")==-1) && (ua.indexOf("msie 6")==-1));
var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);
var is_nav    = ((ua.indexOf('mozilla')!=-1) && (ua.indexOf('spoofer')==-1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('opera')==-1) && (ua.indexOf('webtv')==-1) && (ua.indexOf('hotjava')==-1));
var is_nav6up = (is_nav && (is_major >= 5));

function jsPopup(page,winname,width,height,scroll)
{
	popwin = window.open( page, winname, 'width=' + width + ', height=' + height +
												 ', toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes');
	if (isie && is_win && window.focus)
		popwin.focus();
}

function jsLinkSelector(wnd,selector,clearIndex)
{
		 eval(wnd+".location='"+selector.options[selector.selectedIndex].value+"'");
		 if (clearIndex) selector.selectedIndex = 0;
}