/* ---------------------------- */
/* SHOW-HIDE Layer				*/
/* ---------------------------- 
function showlayer(layer){
document.getElementById(layer).style.display="block";
}*/

// The blocking function
function showlayer(nr){
if (document.getElementById){ // Netscape 5 and Explorer 5
    //current = (document.getElementById(nr).style.display == 'block') ? 'none' : 'block';
    //document.getElementById(nr).style.display = current;
    document.getElementById(nr).style.display = "block";
}else if (document.all){ // Explorer 4
    //current = (document.all[nr].style.display == 'block') ? 'none' : 'block'
    //document.all[nr].style.display = current;
    document.all[nr].style.display = "block";
}else if (document.layers){ // Netscape 4
    var i = parseInt(nr.substr(nr.length-1,1));
    var replacing = heights[i-1];
    if (shown[i]){
        shown[i] = false;
        replacing = -replacing;
        document.layers[nr].visibility = 'hide';
        document.layers[nr].top = safe;
    }else{
        shown[i] = true;
        document.layers[nr].visibility = 'show';
        var tempname = 'header' + i;
        document.layers[nr].top = document.layers[tempname].top + headerheight;
    }
    for (j=(i+1);j<=max;j++){
        name1 = 'header' + j;
        document.layers[name1].top += replacing;
        if (shown[j]){
            name2 = 'number' + j;
            document.layers[name2].top += replacing;
        }
    }
}else alert ('This link does not work in your browser.');
}