function BrowserCheck()
{
        var b = navigator.appName
        if (b=='Netscape') this.b = 'ns'
        else if (b=='Microsoft Internet Explorer') this.b = 'ie'
        else this.b = b
        this.version = navigator.appVersion
        this.v = parseInt(this.version)
        this.ns = (this.b=='ns' && this.v>=4)
        this.ns4 = (this.b=='ns' && this.v==4)
        this.ns5 = (this.b=='ns' && this.v==5)
        this.ie = (this.b=='ie' && this.v>=4)
        this.ie4 = (this.version.indexOf('MSIE 4')>0)
        this.ie5 = (this.version.indexOf('MSIE 5')>0)
        this.ie55 = (this.version.indexOf('MSIE 5.5')>0)
        this.min = (this.ns||this.ie)
}

is = new BrowserCheck()

function ShowFoto(url)
{
	var prefix = "<img src='";
	var suffix = "'/>";
	foto = prefix + url + suffix;

	if (is.ns4) {
		if (!document.layers ||
			!document.layers['big'] ||
			!document.layers['big'].document) {
				top.helpPerm = true;
				return false;
		}
		lyrdoc = document.layers['big'].document;
		lyrdoc.open();
		lyrdoc.write(foto);
		lyrdoc.close();
	}

	if (is.ns5) {
		lyrdoc = document.getElementById('big');
		if (lyrdoc && lyrdoc.innerHTML)
			lyrdoc.innerHTML = foto;
	}

	if (is.ie) {
		if (!document.all ||
			!document.all['big'] ||
			!document.all['big'].innerHTML) {
				top.helpPerm = true;
				return false;
		}
		document.all['big'].innerHTML = foto;
	}

	return false;
}