function removeimage(theimage){

thesource = document.getElementById(theimage).src;
if(thesource == 'http://www.retail-assist.co.uk/images/invis.gif'){
document.getElementById(theimage).style.backgroundColor = 'transparent';}

if(thesource == 'http://www.retail-assist.co.uk/'){
document.getElementById(theimage).style.backgroundColor = 'transparent';}

}