请高手帮我将下面的代码加上一个鼠标点击效果！

请问下面代码怎样加一个鼠标点击超连接的代码呢？？谢谢～！
<script>
<!--
var imageheight=360
var imagewidth=480var cliptop
var clipbottom
var clipleft
var clipright
var clippoints
                                      
var tempo=100var stepx=0
var stepy=0
var timerfunction setValues() {
    if (document.all) {
        document.all.image.style.posLeft=400
           document.all.image.style.posTop=150
        document.all.imagecontent.style.posLeft=400
           document.all.imagecontent.style.posTop=150
        moveimage()
    }
}function moveimage() {
    if (stepx<=imagewidth || stepy<=imageheight) {    
        stepx=stepx+12
        stepy=stepy+6
        image.innerHTML="<span style='width:"+stepx+"px; height:"+stepy+"px;filter:alpha(opacity=0,finishopacity=100,style=2'></span>"
        cliptop=0
        clipbottom=stepy
        clipleft=0
        clipright=stepx
        clippoints="rect("+cliptop+" "+clipright+" "+clipbottom+" "+clipleft+")"
        document.all.imagecontent.style.clip=clippoints
        timer=setTimeout("moveimage()",tempo)
    }
    else{
        clearTimeout(timer)
        timer=setTimeout("moveimage2()",tempo)
    }
  }function moveimage2() {
         if (stepx>=0 || stepy>=0) {    
        stepx=stepx-12
        stepy=stepy-6
        image.innerHTML="<span style='width:"+stepx+"px; height:"+stepy+"px;filter:alpha(opacity=0,finishopacity=100,style=2'></span>"
        cliptop=0
        clipbottom=stepy
        clipleft=0
        clipright=stepx
        clippoints="rect("+cliptop+" "+clipright+" "+clipbottom+" "+clipleft+")"
        document.all.imagecontent.style.clip=clippoints
        timer=setTimeout("moveimage2()",tempo)
    }
    else{
        stepx=0
        stepy=0
        clearTimeout(timer)
        timer=setTimeout("moveimage()",tempo)
    }
   }