var userAgent = navigator.userAgent.toLowerCase();
var is_opera = userAgent.indexOf('opera') != -1 && opera.version();
var is_moz = (navigator.product == 'Gecko') && userAgent.substr(userAgent.indexOf('firefox') + 8, 3);
var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);


function $(id) {
	return document.getElementById(id);
}


function changedisplay(obj, display) {
	if(display == 'auto') {
		obj.style.display = obj.style.display == '' ? 'none' : '';
	} else {
		obj.style.display = display;
	}
	return false;
}

function d_openw(loc, act, winwid, winhei) {
	if(loc.substr(0,7) == 'simply/') {
		setTimeout("window.location = '"+boardurl+"simply/"+loc.substr(7,loc.length)+"';", 1);
	}
}