var ns4=document.layers
var ie4=document.all
var ns6=document.getElementById&&!document.all

function showmov(){
crossobj=ns6? document.getElementById("showimage") : document.all.showimage
if (ie4||ns6)
crossobj.style.visibility="visible"
else if (ns4)
document.showimage.visibility="visible"
}

function hidemov(){
crossobj=ns6? document.getElementById("showimage") : document.all.showimage
if (ie4||ns6)
crossobj.style.visibility="hidden"
else if (ns4)
document.showimage.visibility="hide"
}

function changeIt(imageName,objName)
{var obj = document.getElementById(objName);
var imgTag = "<img class='proj_imag' src='"+imageName+"' border='0' />";
obj.innerHTML = imgTag;
return; 
}