DOM = (document.getElementById)? true : false;

function popup(src){

	w = 500;
	h = 400;

	type = arguments[1];
	if(type == "image"){
		iw = (arguments[2])? arguments[2]+36 : w;
		if(iw > screen.width) iw = screen.width - 36;
		ih = (arguments[3])? arguments[3]+36 : h;		
		if(ih > screen.height) ih = screen.height - 36;
		param = "width=" + iw + ",height=" + ih + ",resizable=yes,scrollbars=yes";
		_popup_ = window.open(src,'',param);
		return;
	}

	if(type){
		_popup_ = window.open(src,'',type);
	}else{
		_popup_ = window.open(src,'','width=' + w + ',height=' + h + ',resizable=yes,menubar=yes,status=yes,scrollbars=yes');
	}

}

roll = function(obj, src){	obj.src = src; }