var activ;
var activ_menu;
var activ_menu_uni
var img_act;
var path_activ;
var path_img;
var path_txt;
var extension;
var mmTimeOut = null;

path_activ = 'canal';
path_img = 'img/menu/';
path_txt = 'img/menu/';
extension = '.gif';
page_container = 'ctl00_';


function MM_HideMenu() {
  mmTimeOut = setTimeout("MM_HideMenuNow();", 1000);
}

function MM_HideMenuNow() {
  document.getElementById(activ).style.visibility = 'hidden';

  if (activ_menu!=path_activ) {
  	MM_swapImage(activ_menu,'',path_img + activ_menu_uni + '_logo' + '_off' + extension,1);
  	MM_swapImage(activ_menu + '_txt','',path_txt + activ_menu + '_txt' + '_off' + extension,1);
  }
  
  activ = '';
}

function MM_ShowMenu(img, img_uni) {
	if (mmTimeOut) clearTimeout(mmTimeOut);
	mmTimeOut = null;
	if (activ) {
		MM_HideMenuNow();
	}
	
	activ = page_container + img + '_menu';
	
	document.getElementById(page_container + img + '_menu').style.visibility = 'visible';	
	
	if(!img) {
		img = img_act;
	} else {
		img_act = img;
	}

	activ_menu = img;
	activ_menu_uni = img_uni;
	
	MM_swapImage(activ_menu,'',path_img + activ_menu_uni + '_logo' + '_on' + extension,1);
	MM_swapImage(activ_menu + '_txt','',path_txt + activ_menu + '_txt' + '_on' + extension,1);
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}