var imagenes = Array();
		imagenes[0] = "bhacemos";
		imagenes[1] = "bbio";
		imagenes[2] = "bclientes";
		imagenes[3] = "bcontacto";
		
		function out(x)
		{
			if (x != curr)
			{
				var img = document.getElementById("img_" + x);
				img.src ="ingles/images/" + imagenes[x] + "up.jpg";
			}
		}
		function over(x)
		{
			if (x != curr)
			{
				var img = document.getElementById("img_" + x);
				img.src ="ingles/images/" + imagenes[x] + "ov.jpg";
			}
		}
		
		function clic(x)
		{
		   for(var i =0; i < 4; i++)
		   {
			   var img = document.getElementById("img_" + i);
				img.src ="ingles/images/" + imagenes[i] + "up.jpg";
		   }
		   var img = document.getElementById("img_" + x);
				img.src ="ingles/images/" + imagenes[x] + "ov.jpg";
				curr = x;
		}
		
function calcHeight(frame)
{
    if (document.all)
    {
        var the_height = frame.contentWindow.document.body.scrollHeight;
        frame.height= "0px";
        frame.height = the_height;
    }
    else
    {
        frame.height= "0px";
        var the_height = frame.contentWindow.document.body.scrollHeight;
        frame.height = the_height;
    }
}