var     isNav = (document.all) ? false : true;
var     isIEx = (document.all) ? true : false;
var width,height;

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&&id.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n) ; return x;
}

function esconde()
{
	MM_changeProp("contenido","","style.visibility","hidden");
}

function getSizes()
{
 if (isNav)
 {
          width=window.innerWidth;
		  height=window.innerHeight;
} else {
         width=document.body.clientWidth;
		 height=document.body.clientHeight;
    }

height=height/2-190;
width=width/2-150;
}

function startCanvas(url) {
	buffer.location.href = url;
	//setTimeout("mira()",2000);
}
function mira()
{
	if (isNav)
	{
		MM_findObj("contenido").innerHTML=buffer.document.body.innerHTML;
	} else {
  	MM_findObj("contenido").innerHTML=document.buffer.document.body.innerHTML;
	}
}
function ajustaCapa()
{
	if (MM_findObj("contenido")!=null)
	{
		getSizes();
		MM_findObj("contenido").style.top=height;
		MM_findObj("contenido").style.left=width;
	}
}

function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}