var k=0;
function changeimg(k) 
{ 
switch (k)
{ 
case 0:
document.headI.src="./common_uk/header/oflorence.jpg";
document.getElementById('headL').style.visibility='visible';
break;
case 1:
document.headI.src="./common_uk/header/omil.jpg";
document.getElementById('headL').style.visibility='visible';
break;
default:
document.headI.src="./common_uk/header/omaps.jpg";
document.getElementById('headL').style.visibility='visible';
break;
}
}