function link ()
            {
                var agt=navigator.userAgent.toLowerCase()

                this.created = true;

                this.major = parseInt(navigator.appVersion)
                this.minor = parseFloat(navigator.appVersion)

                this.nav  = ((agt.indexOf('mozilla')!=-1) && ((agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1)))
                this.nav2 = (this.nav && (this.major == 2))
                this.nav3 = (this.nav && (this.major == 3))
                this.nav4 = (this.nav && (this.major == 4))

                //Netscape 6
                this.nav5 = (this.nav && (this.major == 5))
                this.nav6 = (this.nav && (this.major == 5))
                this.gecko = (this.nav && (this.major >= 5))

                this.ie   = (agt.indexOf("msie") != -1)
                this.ie3  = (this.ie && (this.major == 3))
                this.ie4  = (this.ie && (this.major == 4))
                this.ie5  = (this.ie && (this.major == 5))


                this.opera = (agt.indexOf("opera") != -1)

                this.nav4up = this.nav && (this.major >= 4)
                this.ie4up  = this.ie  && (this.major >= 4)
            }

            var is = new link();
loaded=1;
function showpic(layer)
{
if(loaded==0)return false;
	if(is.ie4up) document.all(layer).style.visibility='visible'
	else if(is.gecko) document.getElementById(layer).style.visibility='visible'		
	// else document.layerers[layer].visibility='show';
}

function hidepic(layer)
{
if(loaded==0)return false;
	if(is.ie4up)document.all(layer).style.visibility='hidden'
	else if(is.gecko) document.getElementById(layer).style.visibility='hidden'
	// else document.layerers[layer].visibility='hide';
}