var is_nav4up;
var is_ie4up;

function detectBrowser() {
	// *** BROWSER TYPE ***
	var agt=navigator.userAgent.toLowerCase();
	var is_major = parseInt(navigator.appVersion);
	var is_minor = parseFloat(navigator.appVersion);
	var is_ie   = (agt.indexOf("msie") != -1);
	is_ie4up  = (is_ie  && (is_major >= 4) && (navigator.appVersion.indexOf("PPC") == -1) );
}


function preview_show(name,e,dir_images_mouseover) {
	detectBrowser()
	filename = name;
	uc_name = Nice_name(name);
	var html = "<table><tr valign=\"top\"><td align=\"center\"><img src=\""+dir_images_mouseover+"/" + filename + ".jpg\" ></td></tr><tr valign=\"top\"><td align=\"center\"><b>" + uc_name + "</b></td></tr></table>"
	if (is_ie4up) {
		document.all.preview.innerHTML = html;
		document.all.preview.style.left = window.event.clientX;
		document.all.preview.style.top = window.event.clientY + document.body.scrollTop;
		document.all.preview.style.visibility = "visible";
	}
	else {
		elm = document.getElementById('preview');
		elm.style.visibility = "visible";
		elm.innerHTML = html;
		elm.style.left = e.clientX;
		elm.style.top = e.clientY + document.body.scrollTop;
	}
}

function preview_out() {
	if (is_ie4up) {
		document.all.preview.style.visibility="hidden";
	}
	else {
		elm = document.getElementById('preview');
		elm.style.visibility="hidden";
	}
}