//Dropdown Menu
function rolloverMenu(showHide, menu)
{
    var link = 'mainLink';
    if (showHide == 0)
	{
        document.getElementById(menu).style.display = 'none';
        //document.getElementById(link).setAttribute('class', 'mainNav');
        //document.getElementById(link).setAttribute('className', 'mainNav');
    }
    else
    {
        document.getElementById(menu).style.display = 'block';
        //document.getElementById(link).setAttribute('class', 'selectedRollover');
        //document.getElementById(link).setAttribute('className', 'selectedRollover');
    }
}


//Popup Windows
var newwindow;
function popup(url,tall,wide)
{
	var properties = "'height=" + tall + ",width=" + (wide + 18) + "',resizeable=true,location=false,status=false,menubar=false,scrollbars=false";
	newwindow = window.open(url,'name',properties);
	if (window.focus) {newwindow.focus()}
}


//Swap Instrument Images
function swapOut(imgUrl)
{
	document.thumbSwap.src = imgUrl;
}