function swapImage(img, newImage) 
{
	img.src = newImage.src; 
}

function sample( sampleSrc )
{
	sampleSum = open( sampleSrc,"sampleWin","toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=700,height=500" );
	sampleSum.focus();
}

function instructions(page) 
{
	window.open(page, 'instructions', 'toolbar=no,height=190,width=450,location=no,directories=no,status=no,menubar=no,scrollbars=no')
}

function load(form) 
{
	for( i=0; i<form.length; i++ ) 
	{
		if( form.elements[i].value != null && form.elements[i].value.indexOf("<!--") == 0 ) 
		{
			form.elements[i].value = "";
		}
	}
}

function rankHelp() 
{
	window.open('ranking.html', 'rank', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,width=400,height=70')
}

function skip(pageNum,form)
{
form.submit(form);
}

function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;

    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }

    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }

    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;

    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}