function openpage1(s){
    window.open(s, '', 'width=600,height=650,top=50,left=800,toolbar=no,menubar=no,scrollbars=yes,resizable=yes,location=yes,status=no');
}
function openpage2(s){
    window.open(s, '', 'width=1000,height=800,top=50,left=800,toolbar=no,menubar=no,scrollbars=yes,resizable=yes,location=yes,status=no');
}



$(document).ready(function () {

$('.service').css("display","none");
$('#service_tab1 img').css("background-image","url(/bg/services_use_nav1.png)");
$('#service1').css("display","block");

     $('.service_tab').click(function(){
         var cur_num = this.id.substr('service_tab'.length);
         $('.service').css("display","none");
         $('.service_tab img').css("background-image","url(/bg/services_use_nav0.png)");
         $('#service_tab'+cur_num+' img').css("background-image","url(/bg/services_use_nav1.png)");
         $('#service'+cur_num).css("display","block");
         return false;
     });
     



});