// how long shall each banner appear? rotating interval  in seconds
var rotating_interval=35

// vertical position of banner: distance to the top margin, pixels
var bannerTopPosition=0

// horizontal position of banner: distance to the left margin, pixels
var bannerLeftPosition=0

var sponsor=new Array()
var i_sponsor=0
var randomvalue
rotating_interval=rotating_interval*1000


// banner code for ATC
sponsor[i_sponsor]='<a href="http://www.atctours.com" target="_Top"><img src="atcb.gif" width="308" height="34" alt="Vive el Mundo ATC..." border="0"></a>'
i_sponsor++

function positionbanner() {
    if (document.all) {
        document.all.banner.style.posTop=bannerTopPosition
		document.all.banner.style.posLeft=bannerLeftPosition
    }
    if (document.layers) {
        document.banner.top=bannerTopPosition
		document.banner.left=bannerLeftPosition
    }
    showbanner()
}

function showbanner() {
    randomvalue=Math.round((sponsor.length-1)*Math.random())
	var content=sponsor[randomvalue]
    if (document.all) {
        banner.innerHTML=content
    }
    if (document.layers) {
        document.banner.document.write(content)
		document.banner.document.close()
    }
    setTimeout("showbanner()",rotating_interval)
}
document.write('<DIV id="banner" style="position:absolute">&nbsp;</DIV>')
document.close()

window.onload=positionbanner