anchor.diff:  				var legend = '<legend>' + idsVar[dataType].text + '</legend>';
   				var filter = '<fieldset id="' + dataType + '">' + legend + inputs + '</fieldset>';
   				$('div#bqFilter').append(filter);
  +
  +				if (dataType=="Gene"){
  +				    // add chromosome range filter
  +
  +					var chrs = [];
  +					for(var r=1; r<20; r++){
  +					    chrs.push(r);
  +                    }
  +                    chrs.push("X", "Y","MT");
  +
  +					var chrSel = "";
  +					for (var i=0; i<chrs.length; i++){
  +					    if (i==0){
  +                            chrSel += '<option value="' + chrs[i] + '" selected="selected">' + chrs[i] + '</option>';
  +                        }
  +                        else {
  +                            chrSel += '<option value="' + chrs[i] + '">' + chrs[i] + '</option>';
  +                        }
  +                    }
  +
  +                    var legend = '<legend>Mouse chromosomal range</legend>';
  +					var inputs = 'Chr:<select id="chrSel">' + chrSel + '</select>' +
  +						'Start: <input id="rstart" type="text" name="chr">' +
  +                    	'End: <input id="rend" type="text" name="chr">';
  +                    var filter = '<fieldset id="chromosome">' + legend + inputs + '</fieldset>';
  +                    $('div#bqFilter').append(filter);
  +                }
  +
               }
   
               function removeDatatypeFilters(dataType) {
                   $('fieldSet#' + dataType).remove();
  +                if (dataType=="Gene"){
  +                    $('fieldSet#chromosome').remove();
  +                }
               }
   
           });
  
positive.code: 											<tr>
  												<td><span class='cat'><i class="icon icon-species">M</i>Mouse<br>&nbsp;(GRCm38):</span></td>
  												<td>
  													<input type="radio" id="mouse_marker_symbol" value="Eg. Car4 or CAR4 (case insensitive). Synonym search supported" name="dataType" class='bq' checked="checked">MGI gene symbol<br>
  													<input type="radio" id="geneId" value="Eg. MGI:106209" name="dataType" class='bq' >MGI id<br>
  													<input type="radio" id="ensembl" value="Eg.. ENSMUSG00000011257" name="dataType" class='bq'>Ensembl id<br>
  
  													<input type="radio" id="geneChr" value="Eg. chr12:53694976-56714605" name="dataType" class='bq'>Chromosomal coordinates<br>
  													<div id="rangeBox" class="srchBox">
  														Chr:
  														<select id="chrSel">
  															<option value="1" selected="selected">1</option>
  															<option value="2">2</option>
  															<option value="3">3</option>
  															<option value="4">4</option>
  															<option value="5">5</option>
  															<option value="6">6</option>
  															<option value="7">7</option>
  															<option value="8">8</option>
  															<option value="9">9</option>
  															<option value="10">10</option>
  															<option value="11">11</option>
  															<option value="12">12</option>
  															<option value="13">13</option>
  															<option value="14">14</option>
  															<option value="15">15</option>
  															<option value="16">16</option>
  															<option value="17">17</option>
  															<option value="18">18</option>
  															<option value="19">19</option>
  															<option value="X">X</option>
  															<option value="Y">Y</option>
  															<option value="MT">MT</option>
  														</select>
  														Start: <input id='rstart' type="text" name="pin" size="8">
  														End: <input id='rend' type="text" name="pin" size="8">
  													</div>
  
  													<input type="radio" id="mp" value="Eg. cardiovescular phenotype or MP:0001926" name="dataType" class='bq'>Mouse phenotype <i class="fa fa-info-circle" aria-hidden="true"></i><br>
  													<div class='block srchBox'>
  														<i class='fa fa-search'></i>
  
negative.code:                 if ( isForm ) {
                      $('button').unbind('click');
                      $("form#dnld").submit();
                  }
          	}
  
              function drawCircle(id, text, x, y, r, paper) {
                  paper.text(x, y, text);
                  var label = paper.text(x, y, text).attr({fill: '#fff'});
                  label.attr({opacity: 100, 'font-size': 10}).toFront();
  
                  var circle = paper.circle(x, y, r).attr({gradient: '90-#526c7a-#64a0c1'}).toBack();
                  circle.data('id', id);
  
  //                    circle.attr(
  