// helper functions function rollOver() { // increments the timer and updates images if(blankSlot>5) blankSlot = 1; counter++; var localCounter = counter; if(localCounter >= numLogos) localCounter = 0; if(blankSlot == 1) { document.getElementById("ad1").innerHTML = blank; } else{ document.getElementById("ad1").innerHTML = logos[localCounter]; } localCounter++; if(localCounter >= numLogos) localCounter = 0; if(blankSlot == 2) { document.getElementById("ad2").innerHTML = blank; } else{ document.getElementById("ad2").innerHTML = logos[localCounter]; } localCounter++; if(localCounter >= numLogos) localCounter = 0; if(blankSlot == 3) { document.getElementById("ad3").innerHTML = blank; } else{ document.getElementById("ad3").innerHTML = logos[localCounter]; } localCounter++; if(localCounter >= numLogos) localCounter = 0; if(blankSlot == 4) { document.getElementById("ad4").innerHTML = blank; } else{ document.getElementById("ad4").innerHTML = logos[localCounter]; } localCounter++; if(localCounter >= numLogos) localCounter = 0; if(blankSlot == 5) { document.getElementById("ad5").innerHTML = blank; } else{ document.getElementById("ad5").innerHTML = logos[localCounter]; } localCounter++; if(localCounter >= numLogos) localCounter = 0; if(counter >= numLogos) counter = 0; blankSlot++; //alert(blankSlot); updateInterval = 3500; timeOn = setTimeout("rollOver()", updateInterval); return true; } // init variables var updateInterval = 1000; var blank = 'To advertise, click here'; var logos = new Array(100); var numLogos; var blankSlot = 1; numLogos = 24; logos[0] = 'Bam Nuttall'; logos[1] = 'Berkeley First'; logos[2] = 'Breheny'; logos[3] = 'Canterbury Christ Church University'; logos[4] = 'Countryside Properties'; logos[5] = 'Crest Nicholson'; logos[6] = 'E.ON'; logos[7] = 'Harrisons Chartered Surveyors'; logos[8] = 'Hyde Group'; logos[9] = 'Lafarge'; logos[10] = 'Medway Council'; logos[11] = 'Medway Renaissance'; logos[12] = 'MHS Homes'; logos[13] = 'Morgan Timber'; logos[14] = 'Mott MacDonald'; logos[15] = 'Orbit South'; logos[16] = 'Pentagon Shopping Centre'; logos[17] = 'SEEDA'; logos[18] = 'Taylor Wimpey'; logos[19] = 'Tesco'; logos[20] = 'Thames Gateway News'; logos[21] = 'University of Greenwich'; logos[22] = 'University of Kent'; logos[23] = 'University of the Creative Arts'; while(numLogos<5) { logos[numLogos] = 'To advertise, click here'; numLogos++; } //alert(numLogos); var counter =-1; // start the ball rolling! timeOn = setTimeout("rollOver()", updateInterval);