function ref(nom_capa){
    if (nav == "ie5ns6") return "document.getElementById('" + nom_capa + "').style."
 	else 	if (nav == "ie4") return "document.all['" + nom_capa + "'].style."
			else return "document." + nom_capa + "."
} 


function veure(nom_capa){
	eval(ref(nom_capa) + "visibility = 'visible'");     
}

function amagar(nom_capa){
    eval(ref(nom_capa) + "visibility = 'hidden'");
}

var p;
var q;

function inici(p){	
eval("document.m"+p+".src=m"+p+"_on.src");
return true;
}

function marca_on(q) {
if (pag!=q){
eval("document.m"+q+".src=m"+q+"_on.src");
return true;
}
}

function marca_of(q) {
eval("document.m"+q+".src=m"+q+"_of.src");
inici(pag);
}

function comencar(){
for (i=1;i<6;i++){
eval("m"+i+"_on=new Image()");
eval("m"+i+"_on.src = 'img/menuCat/m"+i+"_on.gif'");
eval("m"+i+"_of=new Image()");
eval("m"+i+"_of.src = 'img/menuCat/m"+i+"_of.gif'");

}}


function getObject(objname)
{    
    var obj = null ;
    if (document.getElementById) {
        obj = document.getElementById(objname) ;
    } else {
        if (document.all) {
            obj = document.all[objname] ;
            }
        }

    return obj ;
}
 function ShowHideBlock(nom) {
 	var capa ;
	capa = getObject(nom) ;
	if (capa) {
		if (arguments.length==2) {
			//explicit mode
			if (arguments[1]) capa.style.display="block" ;
			else capa.style.display="yes" ;
		} else {
			//toggle mode
			if (capa.style.display!="block") capa.style.display="block";
			else capa.style.display="yes";
			}
		}
	}