//**************CAMBIA ESTILO DE ELEMENTO************//

function cambiaClass(elemento,clase)
{
	eval( elemento + ".className='" + clase + "'");
}

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_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_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];}
}

function pintaImagen(imagen,nombre)
{
  var auxiliar = new Image();
  auxiliar.src = imagen;
	var maxW = 450;
	var w = auxiliar.width;
	var h = auxiliar.height;
	if (w > maxW)
	{
	  var wNuevo = maxW;
	  h = Math.round ((wNuevo * h) / w);
	  w = wNuevo;
	  document.write('<br>');
	  eval('document.'+nombre+'.align = \'bottom\'');
	}  
	  eval('document.'+nombre+'.src = auxiliar.src');
	  eval('document.'+nombre+'.width = w');
	  eval('document.'+nombre+'.height = h');
}

function compruebaImagen(imagen)
{
	var maxW = 430;
	var maxW2 = maxW/2;
	var w = imagen.width;
	var h = imagen.height;
	if (w > maxW)
	{
	  var wNuevo = maxW;
	  h = Math.round ((wNuevo * h) / w);
	  w = wNuevo;
	  imagen.align = 'bottom';
	  imagen.width = w;
	  imagen.height = h;	  
	}
	if ((maxW2 < w) && (w < maxW))
	{
	  imagen.align = 'bottom';
	}
}