document.writeln('');
function show(name){
if (navigator.appName=="Microsoft Internet Explorer")
{
document.all[name].style.display = "block";
}
else
{
eval(name).visibility = "show";
}}
function hide(name)
{
if (navigator.appName=="Microsoft Internet Explorer")
{
document.all[name].style.display = "none";
}
else
{
eval(name).visibility = "hidden";
}}
imageon1=new Image();
imageon1.src="botones2.gif";
imageoff1=new Image();
imageoff1.src="botones1.gif";
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('
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document.writeln('