function navover(id)
{
	var src = document.getElementById(id).src;
	src = src.replace("_over","_on");
	document.getElementById(id).src=src;
}
function navout(id)
{
	var src = document.getElementById(id).src;
	src = src.replace("_on","_over");
	document.getElementById(id).src=src;
}	

function kada_AutoResWindow(theURL,winName,width,height,features) { 
	if(window.screen){
		per_ancho=(width/800)*100;
		per_alto=(height/width)*100;
		win_ancho=(screen.width*per_ancho)/100;
		win_alto=(win_ancho*per_alto)/100;
		x=(screen.width-win_ancho)/2;
		y=(screen.height-win_alto)/2;
	}else{
		x=0;
		y=0;
		win_ancho=w;
		win_alto=y;
	}
	winfeatures=("top="+y+",left="+x+",width="+win_ancho+",height="+win_alto+","+features);
	window.open(theURL,winName,winfeatures);
}

function getDocHeight(doc) {
  var docHt = 0, sh, oh;
  if (doc.height) docHt = doc.height;
  else if (doc.body) {
    if (doc.body.scrollHeight) docHt = sh = doc.body.scrollHeight;
    if (doc.body.offsetHeight) docHt = oh = doc.body.offsetHeight;
    if (sh && oh) docHt = Math.max(sh, oh);
  }
  return docHt;
}

function setIframeHeight(iframeName) {
  var iframeWin = window.frames[iframeName];
  var iframeEl = document.getElementById? document.getElementById(iframeName): document.all? document.all[iframeName]: null;
  if ( iframeEl && iframeWin ) {
    // helps resize (for some) if new doc shorter than previous  
    iframeEl.style.height = "auto"; 
    var docHt = getDocHeight(iframeWin.document);
    // need to add to height to be sure it will all show
    if (docHt) iframeEl.style.height = docHt + 30 + "px";
  }
}

function loadIframe(iframeName, url) {
  if ( window.frames[iframeName] ) {
    window.frames[iframeName].location = url;   
    return false;
  }
  else return true;
}

function goSetHeight(iframeName) {
  if (parent == window) return;
  // no way to obtain id of iframe object doc loaded into? no parentNode or parentElement or ...
  else {
  parent.setIframeHeight(iframeName);
  }
}