<div id="prevnexts">
            <button id="prevs" class="navButs tprev" disabled="">Prev</button>
            <button id="nexts" class="navButs tnext" enabled="enabled">Next</button>
</div>

CSS

#prevnexts {
height: 22px;
left: 50px;
position: absolute;
top: 160px;
width: 75px;
}
 
 #prevnexts .tnext,#prevnexts .tprev {
background: url("images/next1.png") no-repeat scroll 0 0 transparent;
border: 1px solid transparent;
height: 25px;
text-indent: -9999px;
width: 33px;
cursor:pointer;
 }
 
button[disabled]:active,button[disabled],input[type="reset"][disabled]:active,input[type="reset"][disabled],input[type="button"][disabled]:active,input[type="button"][disabled],select[disabled] > input[type="button"],select[disabled] > input[type="button"]:active,input[type="submit"][disabled]:active,input[type="submit"][disabled]
{
 opacity:0.5;
 }
 
 
 
 #prevnexts .tprev 
{
background:url(images/prev1.png) no-repeat 0 0;
}
 
#prevnexts .tprev:hover
 
{
 background:url(images/prev1hover.png) no-repeat 0 0;
}
 
 #prevnexts.tnext:hover
 {
 background:url(images/next1hover.png) no-repeat 0 0;
  }

JavaScript的：

$(document).ready(function() { 
    var cnt = 1;
    var maxLinkss =<?PHP echo $mypostall;  ?>;
    $("#prevs").attr("disabled","disabled");
    $(".tprev:hover").remove();
    $("#nexts").attr("enabled","enabled");   
    $(".navButs").click(function(){   
    if (this.id=="nexts") {
    cnt++;  
   console.log(" + ",cnt);    
   }
   else {
  cnt--;
  console.log(" - ",cnt);  
 
  }
  if (cnt<0) cnt=0;     
  if (cnt>maxLinkss-1) {
  $("#nexts").attr("disabled","disabled"); 
 
   }
   else {
    $("#nexts").removeAttr("disabled"); 
 
  }
  if (cnt==1) {
  $("#prevs").attr("disabled","disabled"); 
 
 }
 else {
  $("#prevs").removeAttr("disabled"); 
}
});  
});