function $( name ) {
	if (typeof name == 'string')
		return document.getElementById(name);

	return name;
}

function imagePreloader( src ) {
    var img_pre = new Image();
    img_pre.src = src;
}

function debug( message ) { 
    if (typeof console != "undefined") 
        console.log(message); 
}

function singleToggle( obj ) {
    $(obj).style.display = $(obj).style.display == 'none' ? '' : 'none';
}