if (top!= self) {
    top.location.href = location.href;
}
if (document.layers)
{
appear = 'show';
disappear = 'hide';
}
else if (document.all)
{
appear = 'visible';
disappear = 'hidden';
}


function go_back() {
	 history.back();
}
function MM_preloadImages() { //v3.0
        var d=document; if (d.images) {
            if (!d.MM_p) d.MM_p=new Array();
            var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for (i=0; i<a.length; i++)
                if (a[i].indexOf("#")!=0) {
                    d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
                }
        }
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
        window.open(theURL,winName,features);
}

function showpic(picture)
{
var thispicture;
if (document.layers)
{
thispicture = document.layers[picture];
}
else if (document.all)
{
thispicture = document.all(picture).style;
}
thispicture.visibility=appear;
}

function hidepic(picture)
{
var thispicture;
if (document.layers)
{
thispicture = document.layers[picture];
}
else if (document.all)
{
thispicture = document.all(picture).style;
}
thispicture.visibility=disappear;
}