if (document.images)
{
	//Top Menu Bar Graphics
	who_we_off = new Image();
	who_we_off.src = "img/who_off.gif";
	
	what_we_off = new Image();
	what_we_off.src = "img/what_off.gif";
	
	why_we_off = new Image();
	why_we_off.src = "img/why_off.gif";
	
	who_we_roll = new Image();
	who_we_roll.src = "img/who.gif";
	
	what_we_roll = new Image();
	what_we_roll.src = "img/what.gif";
	
	why_we_roll = new Image();
	why_we_roll.src = "img/why.gif";
	
	//Central Navigation Graphics
//	AdSure_off = new Image();
//	AdSure_off.src = "img/leads_img_off.png";
	
//	advertise_off = new Image();
//	advertise_off.src = "img/media_img_off.png";
	
//	LeadGen_off = new Image();
//	LeadGen_off.src = "img/tech_img_off.png";
	
//	Industries_off = new Image();
//	Inudstries_off.src = "img/expertise_img_off.png";
	
//	AdSure_roll = new Image();
//	AdSure_roll.src = "img/leads_img_roll.png";
	
//	advertise_roll = new Image();
//	advertise_roll.src = "img/media_img_roll.png";
	
//	LeadGen_roll = new Image();
//	LeadGen_roll.src = "img/tech_img_roll.png";
	
//	Industries_roll = new Image();
//	Industries_roll.src = "img/expertise_img_roll.png";

}

function rollOn (imgName)
{
	if (document.images)
	{
		imgOn = eval (imgName + "_roll.src");
		document[imgName].src = imgOn;
	}
}

function rollOff (imgName)
{
	if (document.images)
	{
		imgOff = eval (imgName + "_off.src");
		document[imgName].src = imgOff;
	}
}