var appver = navigator.appVersion.substring(0,navigator.appVersion.indexOf('.'));
var bIsOk = (navigator.appName == 'Netscape') && (appver >= '5') || (navigator.appName == 'Microsoft Internet Explorer') && (appver >= '4');
var esMac=navigator.appVersion.indexOf("Mac");
function selecciona(cual) {		
	//Hoja de estilos para Mac
	plat_mac = "estilos/"+cual+"e4.css";
	//Hoja de estilos para Pc según navegador
	Pc_n4 = "estilos/"+cual+"n4.css";
	Pc_e4 = "estilos/"+cual+"e4.css";	
	if (esMac != -1){
	        document.write("<link rel='stylesheet' href='" + plat_mac + "' type='text/css'>");
	}
	else{
		if (bIsOk){
		   document.write("<link rel='stylesheet' href='" + Pc_e4 + "' type='text/css'>");
		}else{
		   document.write("<link rel='stylesheet' href='" + Pc_n4 + "' type='text/css'>");
		}
	}
}
//Escribo plantilla (no puedo usar selecciona porque es distinta ruta)
plat_mac = "estilos/plantillae4.css";
Pc_n4 = "estilos/plantillan4.css";
Pc_e4 = "estilos/plantillae4.css";	
if (esMac != -1){
  	document.write("<link rel='stylesheet' href='" + plat_mac + "' type='text/css'>");
}
else{
	if (bIsOk){	   
	   document.write("<link rel='stylesheet' href='" + Pc_e4 + "' type='text/css'>");
	}else{
	   document.write("<link rel='stylesheet' href='" + Pc_n4 + "' type='text/css'>");
	}
}
function overTD(td,color){td.style.cursor='hand';td.bgColor=color;}
function outTD(td,color){td.style.cursor='default';td.bgColor=color;}
function clickTD(td){td.children.tags('A')[0].click();}
function MM_openBrWindow(theURL,winName,features) {
window.name='principal';
window.open(theURL,winName,features);
}