Random | Show if you need to randomly display pictures or link banner on your home page, how do you do that? We introduce the use of JavaScript to achieve this effect!
Here is a random display of five banner code, you can define your own.
<script language=javascript>
<!--
var b_num =12
var b=new Array ();
function Init_item () {
This.width = ' '
This.height = ' '
THIS.SRC = ' '
This.href = ' '
This.border = ' '
This.alt = ' '
This.under = ' '
This.grade=0
This.target= '
}
function Createarray (BA, Itemnum) {
for (var i=0 i<itemnum; i++) {Ba[i] = new Init_item ()}
}
function Requestbanner (BA) {
sum=0;
for (i=0;i<ba.length;i++) Sum+=ba[i].grade
var slump = Math.random ();
var talet = Math.Round (slump* (sum-1)) +1;
i=0;
sum=0;
while (I<ba.length && sum<=talet) {sum+=ba[i].grade;i++;}
B=BA[I-1];
Visa = ';
if (b.target!= ') {
Visa + = ' <a href= ' +b.href+ ' target= ' +b.target+ ' > ';
else{
Visa = ' <a href= ' +b.href+ ' > ';
}
Visa = ' Visa = ' width= ' +b.width+ ' border= ' +b.border+ ' alt= ' +b.alt+ ' > ';
Visa = ' </a> ';
document.write (Visa);
}
Createarray (B,b_num)
B
B[0].SRC = "Http://www.webjx.com/images/468_60.gif"
Banner Picture Path
B[0].href = "Http://www.webjx.com"
Banner Link Address
b[0].target= "_blank"
B[0].width = "468"
B[0].height = "60"
B[0].border = "0"
B[0].alt = ":::: Web Teaching Network::::"
Banner Text hints
B[0].under = ' '
B[0].grade = 20
B
B[2].SRC = "Http://www.webjx.com/ads/sucai114.gif"
B[2].href = "Http://www.webjx.net"
b[2].target= "_blank"
B[2].width = "468"
B[2].height = "60"
B[2].border = "0"
B[2].alt = ":::: Alternate domain name::::"
B[2].under = ' '
B[2].grade = 20
B
B[3].SRC = "Http://www.webjx.com/ads/banner.gif"
B[3].href = "Http://bbs.webjx.com"
b[3].target= "_blank"
B[3].width = "468"
B[3].height = "60"
B[3].border = "0"
B[3].alt = ":::: Technical Forum::::"
B[3].under = ' '
B[3].grade = 20
Requestbanner (b);
-->
</Script>
Insert this JS code into the <body> corresponding position.
Users can modify the relevant code, or increase, reduce the number of banner.
