function onshow(i1,i2,i3,i4,i5,i6,l1,l2,l3,l4,l5,l6)
{
var img1,img2,img3,img4,img5,img6;
img1=document.getElementById(i1);
img2=document.getElementById(i2);
img3=document.getElementById(i3);
img4=document.getElementById(i4);
img5=document.getElementById(i5);
img6=document.getElementById(i6);

ll1=document.getElementById(l1);
ll2=document.getElementById(l2);
ll3=document.getElementById(l3);
ll4=document.getElementById(l4);
ll5=document.getElementById(l5);
ll6=document.getElementById(l6);

img1.style.display='block';
img2.style.display='none';
img3.style.display='none';
img4.style.display='none';
img5.style.display='none';
img6.style.display='none';

ll1.style.background = 'url(images/mu004.gif)';
ll2.style.background = 'url(images/mu005.gif)';
ll3.style.background = 'url(images/mu005.gif)';
ll4.style.background = 'url(images/mu005.gif)';
ll5.style.background = 'url(images/mu005.gif)';
ll6.style.background = 'url(images/mu005.gif)';

}