function Vimg(lay){
    if(navigator.appName.charAt(0)=="M"){
        if(document.all){ document.all(lay).style.visibility="visible"}
    }
	else
    {
        if(document.getElementById){document.getElementById(lay).style.visibility="visible"}
        if(document.layers){document.layers[lay].visibility="show"}
    }
}

function Himg(lay){
    if(navigator.appName.charAt(0)=="M"){
        if(document.all){document.all(lay).style.visibility="hidden"}
    }
	else
    {
        if(document.getElementById){document.getElementById(lay).style.visibility="hidden"}
        if(document.layers){document.layers[lay].visibility="hide"}
    }
}

function pic(id,image){
	document.images[id].src = image;
}