function RollOver(img)
{
	if (document.images)
	{
		var imgOn = img.src;
		
		//remove the .gif from the source
		imgOn = imgOn.substr(0,imgOn.length - 8);
		
		//concat _On.gif back on
		imgOn = imgOn + "over.gif";
		
		img.src = imgOn;
	}
}

function RollOut(img)
{
	if (document.images)
	{
		var imgOut = img.src;
		//remove the .gif from the source
		imgOut = imgOut.substr(0,imgOut.length - 8);
		
		//concat .gif back on
		imgOut = imgOut + "link.gif";
		
		img.src = imgOut;
	}
}
function getEl(el)
{
    return document.all ? document.all[el] : document.getElementById(el);
}

function hilit(component, column, onoff) 
{
    getEl('row_' + component).style.visibility = onoff ? '' : 'hidden';
    getEl('row_below_' + component).style.visibility = onoff ? '' : 'hidden';
    getEl('cell_left_' + component).style.visibility = onoff ? '' : 'hidden';
    getEl('cell_right_' + component).style.visibility = onoff ? '' : 'hidden';
}