function on(val)
{
	if( val == 1)
	{
		document.getElementById("img1").src = "images/preview8_b1_over.gif";
		document.getElementById("img1").style.cursor = "hand";
	}
	if( val == 2)
	{
		document.getElementById("img2").src = "images/preview8_b2_over.gif";
		document.getElementById("img2").style.cursor = "hand";
	}
	if( val == 3)
	{
		document.getElementById("img3").src = "images/preview8_b3_over.gif";
		document.getElementById("img3").style.cursor = "hand";
	}
	if( val == 4)
	{
		document.getElementById("img4").src = "images/preview8_b4_over.gif";
		document.getElementById("img4").style.cursor = "hand";
	}
	if( val == 5)
	{
		document.getElementById("img5").src = "images/preview8_b5_over.gif";
		document.getElementById("img5").style.cursor = "hand";
	}
	if( val == 6)
	{
		document.getElementById("img6").src = "images/preview8_b6_over.gif";
		document.getElementById("img6").style.cursor = "hand";
	}
	if( val == 7)
	{
		document.getElementById("img7").src = "images/preview8_b7_over.gif";
		document.getElementById("img7").style.cursor = "hand";
	}
}
function off(val)
{
	if( val == 1)
	{
		document.getElementById("img1").src = "images/preview8_b1.gif";
	}
	if( val == 2)
	{
		document.getElementById("img2").src = "images/preview8_b2.gif";
	}
	if( val == 3)
	{
		document.getElementById("img3").src = "images/preview8_b3.gif";
	}
	if( val == 4)
	{
		document.getElementById("img4").src = "images/preview8_b4.gif";
	}
	if( val == 5)
	{
		document.getElementById("img5").src = "images/preview8_b5.gif";
	}
	if( val == 6)
	{
		document.getElementById("img6").src = "images/preview8_b6.gif";
	}
	if( val == 7)
	{
		document.getElementById("img7").src = "images/preview8_b7.gif";
	}
}