HTML: Minimizza Pagina Con Un Bottone

<input type="button" value="Minimizar ventana" onclick="window.moveBy(5000,5000); min = 'si';" style="font-family:Verdana"><script>min = "no"; function volver(){if(min == "si"){window.moveTo(0,0); min = "no"}}; window.onfocus = volver
</script>
<style>
.animado {position:absolute;visibility:visible;top:-50px;font-size:10pt;font-family:Arial;font-weight:bold;color:Blak;}
</style>