//Libreria de HTML Dinamico.
//Jose Manuel Chasco Gonzalez
//12-12-00

// convert all characters to lowercase to simplify testing 
    var agt=navigator.userAgent.toLowerCase(); 
	 var isMac		= agt.indexOf("mac")!=-1;
    // *** BROWSER VERSION *** 
    // Note: On IE5, these return 4, so use is_ie5up to detect IE5. 
    var is_major = parseInt(navigator.appVersion); 
    var is_minor = parseFloat(navigator.appVersion); 

    // Note: Opera and WebTV spoof Navigator.  We do strict client detection. 
    // If you want to allow spoofing, take out the tests for opera and webtv. 
    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1) 
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1) 
                && (agt.indexOf('webtv')==-1)); 
    var is_nav2 = (is_nav && (is_major == 2)); 
    var is_nav3 = (is_nav && (is_major == 3)); 
    var is_nav4 = (is_nav && (is_major == 4)); 
    var is_nav4up = (is_nav && (is_major >= 4));
    
    var is_nav5 = (is_nav && (is_major == 5)); 
    var is_nav5up = (is_nav && (is_major >= 5)); 

    var is_ie   = (agt.indexOf("msie") != -1); 
    var is_ie3  = (is_ie && (is_major < 4)); 
    var is_ie4  = (is_ie && (is_major == 4) && ((agt.indexOf("msie 5.0")!=-1) ||(agt.indexOf("msie 6.0")!=-1))); 
    var is_ie4up  = (is_ie  && (is_major >= 4)); 
    var is_ie5  = (is_ie && (is_major == 4) && ((agt.indexOf("msie 5.0")!=-1) ||(agt.indexOf("msie 6.0")!=-1))); 
    var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4); 
    //added
    var is_dom = (is_ie5 || is_ie5up || is_nav5 || is_nav5up);
    
function mostrar_capa(){
//Oculta una capa o varias , debe recibir su nombre.mostrar_capa('capa1','capa2','..','...',''...)
	argc=mostrar_capa.arguments;for(i=0;i<argc.length;i++){
		if (argc[i].indexOf("#")!=0){if(is_dom){document.getElementById(argc[i]).style.visibility="visible";}else{
			if(is_nav4){document.layers[argc[i]].visibility="show";}else{
				if(is_ie4){document.all[argc[i]].style.visibility="visible";}	
			}
		}}
	}
}
function ocultar_capa(){
//Oculta una capa o varias , debe recibir su nombre.
	argc=ocultar_capa.arguments;
	for(i=0;i<argc.length;i++){
		if (argc[i].indexOf("#")!=0){if(is_dom){document.getElementById(argc[i]).style.visibility="hidden";}else{
			if(is_nav4){document.layers[argc[i]].visibility="hide";}else{
				if(is_ie4){document.all[argc[i]].style.visibility="hidden";}	
			}
		}}
	}
}