function returnObjById( id ) 
{ 
    if (document.getElementById) 
        var returnVar = document.getElementById(id); 
    else if (document.all) 
        var returnVar = document.all[id]; 
    else if (document.layers) 
        var returnVar = document.layers[id]; 
    return returnVar; 
}

function isEMailAddr(elem) {
    var str = elem;
    var re = /^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/;
    if (!str.match(re)) {
        return false;
    } else {
        return true;
    }
}

function isReserved(toCheck){
	switch(toCheck){
		case "captcha":
			return true;
			break;
		case "database":
			return true;
			break;
		case "forum":
			return true;
			break;			
		case "html":
			return true;
			break;
		case "images":
			return true;
			break;
		case "languages":
			return true;
			break;
		case "lib":
			return true;
			break;			
		case "modules":
			return true;
			break;
		case "plugins":
			return true;
			break;			
		case "services":
			return true;
			break;
		case "templates":
			return true;
			break;
		case "andrei":
			return true;
			break;
		case "andrew":
			return true;
			break;
		case "userdata":
			return true;
			break;						
		default:
			return false;		
	}
}