function create() {
 
         this.width = ''
         this.height = ''
         this.src = ''
         this.href = ''
         this.border = ''
         this.mouseover = ''
         this.sponsor = ''
 
 }
 ads = new Array()
 
 for(var i=1; i<=4; i++) { ads[i] = new create() }
 
 ads[1].width = "386"
 ads[1].height = "39"
 ads[1].src = "banner-proactiva.gif"
 ads[1].href = "http://www.proactiva.net"
 ads[1].border = "0"
 ads[1].mouseover = "proActiva Consultores"
 ads[1].sponsor = "proActiva Consultores"
 
 ads[2].width = "386"
 ads[2].height = "39"
 ads[2].src = "banner-proactiva.gif"
 ads[2].href = "http://www.proactiva.net"
 ads[2].border = "0"
 ads[2].mouseover = "proActiva Consultores"
 ads[2].sponsor = "proActiva Consultores"
 
 ads[3].width = "386"
 ads[3].height = "39"
 ads[3].src = "banner-socinver.gif"
 ads[3].href = "http://www.socinver.com"
 ads[3].border = "0"
 ads[3].mouseover = "Socinver: Business in Bolivia"
 ads[3].sponsor = "Great opportunities of business in Bolivia"
 
 ads[4].width = "386"
 ads[4].height = "39"
 ads[4].src = "banner-jatha.gif"
 ads[4].href = "http://www.jatha.com"
 ads[4].border = "0"
 ads[4].mouseover = "Jatha - Agencia Boliviana de Noticias"
 ads[4].sponsor = "Informe periodístico de noticias de Bolivia en línea"
 

 var n = Math.random() + ''
 
 n = parseInt(n.charAt(6))
 


 if (n > 4) {

         n = 4  
 }
 
 
 else if (n == 0) {
 
         n = n + 1
 
 } 
 
 
 n += ""
 


 var image = ads[n]
 var negofina = ""
 negofina += '<a href="' + image.href + '" \n'
 negofina += 'onMouseOver="self.status=\'' + image.mouseover + '\'\;return true" \n'
 negofina += 'onMouseOut="self.status=\'\'"> \n'
 negofina += '<img src="' + image.src + '" width=' + image.width
 negofina += '\n height=' + image.height + ' border=' + image.border
 negofina += '\n><br>Visite: ' + image.sponsor + '</a>'