<!--

if (document.images) {            
            // Active Images

            img1on = new Image();      
            img1on.src = "images/about_on.gif"; 
            img2on = new Image(); 
            img2on.src = "images/purchase_on.gif";  
            img3on = new Image();
            img3on.src = "images/testimonials_on.gif";
            img4on = new Image();
            img4on.src = "images/whyfiltrx_on.gif";
            img5on = new Image();
            img5on.src = "images/contact_on.gif";
            img6on = new Image();
            img6on.src = "images/next_on.gif";

            img1off = new Image();      
            img1off.src = "images/about_off.gif"; 
            img2off = new Image(); 
            img2off.src = "images/purchase_off.gif";  
            img3off = new Image();
            img3off.src = "images/testimonials_off.gif";
            img4off = new Image();
            img4off.src = "images/whyfiltrx_off.gif";
            img5off = new Image();
            img5off.src = "images/contact_off.gif";
            img6off = new Image();
            img6off.src = "images/next_off.gif";
            
}

// Function to 'activate' images -return to normal.
function imgOff(imgName) {
        if (document.images) 
        {
			//alert("check=" + check);
            if (check!=imgName)
          {
			  document[imgName].src = eval(imgName + "off.src");
			}
        }
}

// Function to 'deactivate' images -highlight images.
function imgOn(imgName) { 
		if (document.images) 
		{
              document[imgName].src = eval(imgName + "on.src");
        }
}

function changeframes(imgName)
{

  var temp;
  temp=check;
  check="none"; //clear out variable so imgoff will work
	if (temp!=imgName) {
		imgOff(temp);
		check=imgName;
	} else {
		imgOn(temp);
		check=imgName;
	}

} 

var check="none"; //home

// Function to open remote windows
function popup()
	{
		moreinfo = window.open('disclaimer.htm', 'disclaimer', 'left=50,top=1,width=340,height=380,resizeable=yes,status=no,scrollbars=yes');
	}
// End -->