//funcion para abrir ventana centrada
//le pasas el tipo de ventana y la url para abrir, y aquí defines el tamaño
//de esa ventana

function openWnd(strTipo, strUrl){
	var ancho;
	var alto;
	var status = "no";
	var scrollbars = "no";
	var resizable = "no";
	switch (strTipo) {
		case 'asignatura' :
			ancho=360;
			alto=280;
			break;
		case 'ficheros' :
			ancho=600;
			alto=450;
			scrollbars="yes";
			break;
		case 'imprimir' :
			ancho=680;
			alto=500;
			scrollbars="yes";
			break;
		case 'imprimirExp' :
			ancho=680;
			alto=500;
			scrollbars="yes";
			break;
		case 'diccionario' :
			ancho=415;
			alto=255;
			break;
		case 'test' :
			ancho=680;
			alto=500;
			scrollbars="yes";
			break;
		case 'notas' :
			ancho=415;
			alto=325;
			break;
		case 'chat' :
			ancho=655;
			alto=320;
			break;
		
		case 'chat2' :
			ancho=495;
			alto=320;
			break;
		case 'descripcion' :
			ancho=415;
			alto=255;
			break;
		case 'tablon' :
			ancho=800;
			alto=450;
			scrollbars="yes";
			resizable="yes";
			break;
	}
	var winl = (screen.width - ancho) / 2;
	var wint = (screen.height - alto) / 3;
	winprops = 'height='+alto+',width='+ancho+',top='+wint+',left='+winl+',scrollbars='+scrollbars+',resizable='+resizable+',toolbars=no,locationbar=no,directories=no,menubar=no,status='+status;
	win = window.open(strUrl, strTipo, winprops);
	if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

function openWnd2(id){
	var ancho=415;
	var alto=255;
	var status = "no";
	var scrollbars = "no";
	var winl = (screen.width - ancho) / 2;
	var wint = (screen.height - alto) / 3;
	winprops = 'height='+alto+',width='+ancho+',top='+wint+',left='+winl+',scrollbars='+scrollbars+',resizable=no,toolbars=no,locationbar=no,directories=no,menubar=no,status='+status;
	win = window.open("/diccionario.asp?id_palabra="+id, "_blank", winprops);
	if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}