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

bimg1[1]=Rand_1A
bimg1[2]=Rand_1B
bimg1[3]=Rand_1C
bimg1[4]=Rand_1D
bimg1[5]=Rand_1E
bimg1[6]=Rand_1F

bimg2[1]=Rand_2A
bimg2[2]=Rand_2B
bimg2[3]=Rand_2C
bimg2[4]=Rand_2D
bimg2[5]=Rand_2E
bimg2[6]=Rand_2F

bimg3[1]=Rand_3A
bimg3[2]=Rand_3B
bimg3[3]=Rand_3C
bimg3[4]=Rand_3D
bimg3[5]=Rand_3E
bimg3[6]=Rand_3F

bimg4[1]=Rand_4A
bimg4[2]=Rand_4B
bimg4[3]=Rand_4C
bimg4[4]=Rand_4D
bimg4[5]=Rand_4E
bimg4[6]=Rand_4F

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 >= 7) { banIndex1 = 1; }
if(banIndex2 >= 7) { banIndex2 = 1; }
if(banIndex3 >= 7) { banIndex3 = 1; }
if(banIndex4 >= 7) { banIndex4 = 1; }

var bhtm1=bimg1[banIndex1];
var bhtm2=bimg2[banIndex2];
var bhtm3=bimg3[banIndex3];
var bhtm4=bimg4[banIndex4];







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);
}