Link para URL não funciona

Peguei esse script de banner no site Script Brasil, entendo pouco de programação (quase nada de js) mas o script é até bastante simples e fácil de configurar.

Acontece que os links das imagens para cada banner não está funcionando corretamente.

Alguém consegue me ajudar a corrigir esse problema por favor???

Página js

var coverimage = new Array()coverimage[0]="stripes0.jpg"coverimage[1]="stripes1.gif"coverimage[2]="stripes2.gif"coverimage[3]="stripes3.gif"coverimage[4]="stripes4.gif"coverimage[5]="stripes5.gif"coverimage[6]="stripes6.gif"coverimage[7]="stripes7.gif"var covimgpreload=new Array()for (i=0;i<=coverimage.length-1;i++) {	covimgpreload[i]=new Image()	covimgpreload[i].src=coverimage[i]}var i_messages=0var i_loop=0var thisurl=0var timervar coverwidthvar coverheightstandstill=standstill*1000var contentif (fontweight=="yes") {    fontweight="<b>"} else {fontweight=""}function init() {  content="<table width='"+messagewidth+"' height='"+messageheight+"' border='"+borderwidth+"'>"    content+="<tr valign='"+messagevalign+"'><td align='"+messagealign+"' bgcolor='"+backgroundcolor+"'>"    content+="<font size='"+fntsize+"' face='"+fntface+"'  color='"+fntcolor+"'>"    content+=fontweight    content+=message[i_messages]    content+="</font></td></tr></table>"    if (document.all) {     document.all.messagebox.style.posTop=messages_top        document.all.messagebox.style.posLeft=messages_left        document.all.cover.style.posTop=messages_top        document.all.cover.style.posLeft=messages_left  messagebox.innerHTML=content  coverwidth=messagebox.offsetWidth  coverheight=messagebox.offsetHeight  cover.innerHTML="<a href='javascript:gotourl()' target='_blank'><img width="+coverwidth+" height="+coverheight+" name='imgcover' src='"+coverimage[i_loop]+"' border=0></a>"          enlargehearts()    } if (document.layers) {     document.messagebox.top=messages_top        document.messagebox.left=messages_left        document.cover.top=messages_top        document.cover.left=messages_left  document.messagebox.document.write(content)  document.messagebox.document.close()  coverwidth=document.messagebox.document.width  coverheight=document.messagebox.document.height  document.cover.document.write("<a href='javascript:gotourl() target='_blank''><img width="+coverwidth+" height="+coverheight+" name='imgcover' src='"+coverimage[i_loop]+"' border=0></a>")  document.cover.document.close()          enlargehearts()    }}function enlargehearts() {        if (i_loop<=coverimage.length-1) {              if (document.all) {                imgcover.src=coverimage[i_loop]            }            if (document.layers) {                document.cover.document.imgcover.src=coverimage[i_loop]            }            i_loop++            timer= setTimeout("enlargehearts()",pause)          }        else {            clearTimeout(timer)            i_loop--            timer= setTimeout("shrinkhearts()",standstill)       }}function shrinkhearts() {        if (i_loop>=0) {              if (document.all) {                imgcover.src=coverimage[i_loop]            }            if (document.layers) {                document.cover.document.imgcover.src=coverimage[i_loop]            }            i_loop--            timer= setTimeout("shrinkhearts()",pause)        }        else {            clearTimeout(timer)            i_loop=0            i_messages++                        if (i_messages>=message.length) {i_messages=0}     content="<table width='"+messagewidth+"' height='"+messageheight+"' border='"+borderwidth+"'>"                content+="<tr valign='"+messagevalign+"'><td align='"+messagealign+"' bgcolor='"+backgroundcolor+"'>"                content+="<font size='"+fntsize+"' face='"+fntface+"'  color='"+fntcolor+"'>"                content+=fontweight                content+=message[i_messages]                content+="</font></td></tr></table>"                if (document.all) {                    messagebox.innerHTML=content                }                if (document.layers) {                    document.messagebox.document.write(content)                    document.messagebox.document.close()                }            timer= setTimeout("enlargehearts()",(4*pause))        }}function gotourl() {	document.location.href=messageboxlink[i_messages]}window.onload=init

página banner.php

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[http://www.w3.org/TR/html4/loose.dtd">http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Untitled Document</title><style type="text/css"><!--body {	margin-left: 0px;	margin-top: 0px;	margin-right: 0px;	margin-bottom: 0px;}--></style></head><body><script LANGUAGE="JavaScript"><!-- Beginning of JavaScript -// the messages. Add as many as you like.var message=new Array()message[0]='<img src="../img/logokaram_pq.jpg">'message[1]='<img src="../img/logomm.jpg">'message[2]='<img src="../img/logorc.gif">'message[3]='<img src="../img/logomake.jpg">'// links for each messagevar messageurl = new Array()messageurl[0]=""messageurl[1]=""messageurl[2]="[http://www.rcdesignbrasil.com"messageurl[3]=""//](http://www.rcdesignbrasil.com) fontsize, font and fontcolorvar fntsize=2var fntface="Verdana"var fntcolor="black"// fontweight (values: "yes" or "no")var fontweight="yes"// background-color of messageboxvar backgroundcolor="white"// width and the height of the messagebox (pixels)var messagewidth="180"var messageheight="100"// width of messagebox border var borderwidth="0"// horizontal and the vertical position of the messages in relation to the messageboxvar messagealign="center"var messagevalign="middle"// vertical position of the messagebox (distance to the top margin of the webpage, pixels)var messages_top=0// horizontal position of messagebox (distance to the left margin of the webpage, pixels)var messages_left=0// speed of the transition effect. Less means fastervar pause=30// standstill-time of messages (seconds)var standstill=3// - End of JavaScript - --></SCRIPT><script SRC="texttransliner.js"></SCRIPT><DIV ID="messagebox" style="position:absolute"> </DIV><DIV ID="cover" style="position:absolute"> </DIV></body></html>