--- a
+++ b/qiita_pet/static/js/analysis.js
@@ -0,0 +1,76 @@
+function displaySelected() {
+  var linktext = document.getElementById("shselected");
+  var seldiv = document.getElementById("selected");
+  var sampdiv = document.getElementById("availstudies");
+  var buttondiv = document.getElementById("seperator");
+  if(seldiv.style.display == "none") {
+    sampdiv.style.bottom = "30%";
+    sampdiv.style.height='60%';
+    buttondiv.style.bottom = "25%";
+    seldiv.style.height = "25%";
+    seldiv.style.display = "";
+    linktext.innerHTML = "Hide selected samples";
+  }
+  else {
+    sampdiv.style.bottom = "";
+    sampdiv.style.height='90%';
+    buttondiv.style.bottom = "0px";
+    seldiv.style.height = "0px";
+    seldiv.style.display = "none";
+    linktext.innerHTML = "Show selected samples";
+  }
+}
+
+function select_category(category, study) {
+  if(study != '') {
+    $('.'+study+'.'+category).each(function() {this.checked = true;});
+    count_update(study);
+  }
+  else {
+    $('.'+category).each(function() {this.checked = true;});
+    for(i=0; i<STUDIES.length; i++) {
+      count_update(STUDIES[i]);
+    }
+  }
+}
+
+function select_deselect_samples_study(study) {
+  var selected_datatypes = $('#study' + study + ' input:checkbox:checked').length;
+  var sel = false;
+  if (selected_datatypes > 0) { sel = true; }
+  select_deselect(study, sel)
+}
+
+function count_update(study) {
+  var selected = $('#modal' + study + ' input:checkbox:checked').length;
+  var studylink = document.getElementById('modal-link-' + study)
+  document.getElementById('count' + study).innerHTML = selected;
+  if(selected > 0) {
+    $('#study' + study).addClass('success');
+    studylink.disabled = false;
+    studylink.style = "";
+  }
+  else {
+    $('#study' + study).removeClass('success');
+    studylink.disabled = true;
+    studylink.style = "text-decoration: none;";
+    $('#study' + study + " input:checkbox").each(function() {this.checked = false;})
+  }
+}
+
+function select_deselect(study, select) {
+  if(select == true) {
+    $('.'+study).each(function() {this.checked = true;});
+  }
+  else {
+    $('.'+study).each(function() {this.checked = false;});
+  }
+  count_update(study);
+}
+
+function select_inverse(study) {
+  $('.'+study).each(function() {
+    if(this.checked == true) { this.checked = false; }
+    else { this.checked = true; }
+  });
+}