if( document.images)
{
	folder = "./buttons_alter/"

	var button1_up	 = new Image()
	button1_up.src	 = folder + "button1up.png"
	var button1_over = new Image()
	button1_over.src = folder + "button1over.png"

	var button2_up	 = new Image()
	button2_up.src	 = folder + "button2up.png"
	var button2_over = new Image()
	button2_over.src = folder + "button2over.png"

	var button3_up	 = new Image()
	button3_up.src	 = folder + "button3up.png"
	var button3_over = new Image()
	button3_over.src = folder + "button3over.png"

	var button4_up	 = new Image()
	button4_up.src	 = folder + "button4up.png"
	var button4_over = new Image()
	button4_over.src = folder + "button4over.png"

	var button5_up	 = new Image()
	button5_up.src	 = folder + "button5up.png"
	var button5_over = new Image()
	button5_over.src = folder + "button5over.png"

	var button6_up	 = new Image()
	button6_up.src	 = folder + "button6up.png"
	var button6_over = new Image()
	button6_over.src = folder + "button6over.png"

	var button7_up	 = new Image()
	button7_up.src	 = folder + "button7up.png"
	var button7_over = new Image()
	button7_over.src = folder + "button7over.png"

	var button8_up	 = new Image()
	button8_up.src	 = folder + "button8up.png"
	var button8_over = new Image()
	button8_over.src = folder + "button8over.png"
}

function overButton( numberButton )
{
	if( document.images )
	{
		nameButton = "button" + numberButton
		document.images[nameButton].src = eval( "button" + numberButton + "_over.src" )
		window.status = "Haz click sobre el Botón para visitar esa Página"
		return true
	}
}

function upButton( numberButton )
{
	if( document.images )
	{
		nameButton = "button" + numberButton
		document.images[ nameButton].src = eval( "button" + numberButton + "_up.src" )
		window.status = ""
		return true
	}
}