function nw(mypage, myname, w, h, scroll) {
	var winl = (screen.width - w) / 4;
	var wint = (screen.height - h) / 4;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'
	win = window.open(mypage, myname, winprops)
	if (parseInt(navigator.appVersion) >= 4) {
    	win.window.focus();
    }
}

function ShowHelp(reason){
	if(reason != ''){
    	nw('help.php?reason='+reason,'help_page','380','400','yes');
    }
}