var bimg1 = new Array();
var bimg2 = new Array();
var bimg3 = new Array();
var bimg4 = new Array();

bimg1[1]=Audio_Rand_1A
bimg1[2]=Audio_Rand_1B
bimg1[3]=Audio_Rand_1C
bimg1[4]=Audio_Rand_1D

bimg2[1]=Audio_Rand_2A
bimg2[2]=Audio_Rand_2B
bimg2[3]=Audio_Rand_2C
bimg2[4]=Audio_Rand_2D

bimg3[1]=Audio_Rand_3A
bimg3[2]=Audio_Rand_3B
bimg3[3]=Audio_Rand_3C
bimg3[4]=Audio_Rand_3D

bimg4[1]=Audio_Rand_4A
bimg4[2]=Audio_Rand_4B
bimg4[3]=Audio_Rand_4C
bimg4[4]=Audio_Rand_4D

var banIndex1 = Math.ceil(Math.random() * 1);
var banIndex2 = Math.ceil(Math.random() * 1);
var banIndex3 = Math.ceil(Math.random() * 1);
var banIndex4 = Math.ceil(Math.random() * 1);

function adChange() {
	
//alert("test");	
	

if(banIndex1 >= 5) { banIndex1 = 1; }
if(banIndex2 >= 5) { banIndex2 = 1; }
if(banIndex3 >= 5) { banIndex3 = 1; }
if(banIndex4 >= 5) { banIndex4 = 1; }

var bhtm1="<a href='download.php?index="+bimg1[banIndex1]+"'><img src='http://www.music.lk/images_promo/top/"+bimg1[banIndex1]+".jpg' alt='Top Banner' border='0' /></a>";
var bhtm2="<a href='download.php?index="+bimg2[banIndex2]+"'><img src='http://www.music.lk/images_promo/top/"+bimg2[banIndex2]+".jpg' alt='Top Banner' border='0' /></a>";
var bhtm3="<a href='download.php?index="+bimg3[banIndex3]+"'><img src='http://www.music.lk/images_promo/top/"+bimg3[banIndex3]+".jpg' alt='Top Banner' border='0' /></a>";
var bhtm4="<a href='download.php?index="+bimg4[banIndex4]+"'><img src='http://www.music.lk/images_promo/top/"+bimg4[banIndex4]+".jpg' alt='Top Banner' border='0' /></a>";

document.getElementById("b1").innerHTML=bhtm1;
document.getElementById("b2").innerHTML=bhtm2;
document.getElementById("b3").innerHTML=bhtm3;
//document.getElementById("b4").innerHTML=bhtm4;

banIndex1++
banIndex2++
banIndex3++
banIndex4++

setTimeout("adChange()", 5000);
}