function opaque()
{
	document.getElementById("mainContent").style.opacity = 1;
	document.getElementById("mainContent").filters.item("DXImageTransform.Microsoft.Alpha").opacity = 100;
}

function unopaque()
{
	document.getElementById("mainContent").style.opacity = 0.85;
	document.getElementById("mainContent").filters.item("DXImageTransform.Microsoft.Alpha").opacity = 85;
}