if (document.images) 
{  

img21on = new Image;
img21off = new Image; 

img22on = new Image;
img22off = new Image; 

img23on = new Image;
img23off = new Image; 

img24on = new Image;
img24off = new Image; 

img25on = new Image;
img25off = new Image; 



img21on.src = "i/but/but001.gif";
img21off.src = "i/but/but001o.gif"; 

img22on.src = "i/but/but002.gif";
img22off.src = "i/but/but002o.gif"; 

img23on.src = "i/but/but003.gif";
img23off.src = "i/but/but003o.gif"; 

img24on.src = "i/but/but004.gif";
img24off.src = "i/but/but004o.gif"; 

img25on.src = "i/but/but005.gif";
img25off.src = "i/but/but005o.gif";


}

function imgOutt(imgName) { 

	if (document.images) { 
	imgOn = eval(imgName + "on.src");
	
	document[imgName].src = imgOn
	
	} 
} 
	
function imgOverr(imgName) { 
	if (document.images) { 
	imgOff = eval(imgName + "off.src");

	document[imgName].src = imgOff
} 
}