function unshow()
{
    if (parent.frames[0].document.prev_image)
	{
		var d = parent.document.getElementById('imageholder');
	    d.src = parent.frames[0].document.prev_image;
    }
}

function show(imgl)
{
	if (imgl)
	{
		path = "images/image_" + imgl + ".jpg";
	    var d = parent.document.getElementById('imageholder');
	    d.src = path;
    }

}

function upImage(imgl)
{
    parent.frames[0].document.prev_image = imgl;
    //parent.document.all.imageholder.src = imgl;
	var d = parent.document.getElementById('imageholder');
	d.src = imgl;
	getFrameHeight();
        
}

function mo(obj,img)
{
	document.images[obj].src = img;
}

function getFrameHeight() {
	var isMOZ = (navigator.userAgent.indexOf("Mozilla") != -1) ? true : false;
	var isNN = (navigator.userAgent.indexOf("Netscape") != -1) && (navigator.userAgent.indexOf("Mac") != -1) ? true : false;
	var isMacIE = (navigator.userAgent.indexOf("MSIE") != -1) && (navigator.userAgent.indexOf("Mac") != -1) ? true : false;
		//puts the window back at the top.
		parent.scroll(0,0);
		
		var i = parent.document.getElementById('iFramePage');
		
		if(isMacIE) {
			i.style.height = (document.documentElement.offsetHeight) + 'px';
			}
		else if(isMOZ || isNN) {
			i.style.height = (document.body.scrollHeight ) + 'px';
			}
		else {
			i.style.height = document.body.scrollHeight + 'px';
		
			}
		}