// standard image swap [name,image]
function img_swap() {
    for (var m=0;m<arguments.length;m+=2){
        var obj=document.getElementById(arguments[m])
        if (obj) {
            obj.src=arguments[m+1];
        }
    }
}
// standard style swap [name,class]
function style_swap() {
    for (var m=0;m<arguments.length;m+=2){
        var obj=document.getElementById(arguments[m])
        if (obj) {
            obj.className=arguments[m+1];
        }
    }
}
function setPage(url, page) {
  var ix = url.indexOf("pager_next=");
  if (ix!=-1) {
     url = url.substring(0,ix);
  }
  if (url.indexOf('?')!=-1) {
      location.href=url+'&pager_next='+page;
  } else {
      location.href=url+'?pager_next='+page;
  }
}