var ns4 = (document.layers)? true:false
var ie4 = (document.all)? true:false

function showObject(obj) {
        if (ns4) obj.visibility = "show"
        else if (ie4) obj.visibility = "visible"
}

function hideObject(obj) {
        if (ns4) obj.visibility = "hide"
        else if (ie4) obj.visibility = "hidden"
}

function modify_enter(){  
	login_window = open("/modify_window.html", "modositas_window", 
	"width=150,height=200,status=no,menubar=no");
}

function nyit(url,x,y){     
	open(url,"help_ablak","width="+x+",height="+y+",status=no,menubar=no,scrollbars=yes");
	return true;
}

function nyit2(url,x,y){     
	open(url,"help_ablak","width="+x+",height="+y+",status=no,menubar=no,scrollbars=yes");
	return true;
}