if (document.images) { 
 image1off = new Image();
 image1off.src = "img/wallcoatings.gif";
 image2off = new Image();
 image2off.src = "img/sealers.gif";
 image3off = new Image();
 image3off.src = "img/hygiene.gif";
 image4off = new Image();
 image4off.src = "img/roofing.gif";
 image5off = new Image();
 image5off.src = "img/electro.gif";
 image6off = new Image();
 image6off.src = "img/underground.gif";
 image7off = new Image();
 image7off.src = "img/anticondensation.gif";
 imageaoff = new Image();
 imageaoff.src = "img/home.gif";
 imageboff = new Image();
 imageboff.src = "img/company.gif";
 imagecoff = new Image();
 imagecoff.src = "img/business.gif";
 imagedoff = new Image();
 imagedoff.src = "img/contactus.gif";
 imageeoff = new Image();
 imageeoff.src = "img/sversion.gif";




 image1on = new Image();
 image1on.src = "img/wallcoatingsON.gif";
 image2on = new Image();
 image2on.src = "img/sealersON.gif";
 image3on = new Image();
 image3on.src = "img/hygieneON.gif";
 image4on = new Image();
 image4on.src = "img/roofingON.gif";
 image5on = new Image();
 image5on.src = "img/electroON.gif";
 image6on = new Image();
 image6on.src = "img/undergroundON.gif";
 image7on = new Image();
 image7on.src = "img/anticondensationON.gif";
 imageaon = new Image();
 imageaon.src = "img/homeON.gif";
 imagebon = new Image();
 imagebon.src = "img/companyON.gif";
 imagecon = new Image();
 imagecon.src = "img/businessON.gif";
 imagedon = new Image();
 imagedon.src = "img/contactusON.gif";
 imageeon = new Image();
 imageeon.src = "img/sversionON.gif";
}

function turnOn(imageName) { 
	if (document.images) { 
	document[imageName].src = eval(imageName + "on.src"); 
	}
}

function turnOff(imageName) { 
	if (document.images) {
	 document[imageName].src = eval(imageName + "off.src"); 
	}
}