function exavista(){
	document.write('<applet code="ptviewerx.class" name="ptviewer" width=600 height=250 archive="ptviewer.jar">\n');
    document.write('<param name=file value="estudio3.jpg">\n');
    document.write('<param name=wait value="espera.gif">\n');
	document.write('<param name="pfov" value="180">\n');
    document.write('<param name="cursor" value="move">\n');
	document.write('<param name="bgcolor" value="000000">\n');
    document.write('</applet>\n');}