dictionary - Now I have map marker for categories. I want to add a default map marker to google map. How? -

from demo here here. can see if clicked check box restaurants or parks. markers show up. these markers item of both 2 categories.

i want add 1 more map marker default position of map.

i tried add this, it's not working.

var map; var var_location = new google.maps.latlng(45.430817,12.331516); function map_init() {                 var var_mapoptions = {         center: var_location,         zoom: 16,         maptypeid: google.maps.maptypeid.roadmap,         pancontrol:false,         rotatecontrol:false,         streetviewcontrol: false,         scrollwheel: false,     };     map = new google.maps.map(document.getelementbyid("map"),         var_mapoptions);     var contentstring =          '<div id="mapinfo">'+         '<p><strong>peggy guggenheim collection</strong><br>'+         'dorsoduro, 701-704<br>' +         '30123, venezia<br>'+         'p: (+39) 041 240 5411</p>'+         '</div>';           var var_infowindow = new google.maps.infowindow({            content: contentstring          });     var var_marker = new google.maps.marker({     position: var_location,     map: map,     icon: 'images/mapicon.png',     title:"click information guggenheim museum in venice",           maxwidth: 200,           maxheight: 200   });     google.maps.event.addlistener(var_marker, 'click', function() {      var_infowindow.open(map,var_marker);   }); }          var places={         restaurant:{           label:'restaurants',           //the category may default-checked when want           //uncomment next line           //checked:true,           icon: 'images/map-marker/01.png' ,           items: [                   ['melt bar , grill', 41.485345, -81.799047],                   ['sloane pub', 41.486182, -81.824178],                   ['spitfire salon', 41.479670, -81.768430],                   ['mahall\'s', 41.476989, -81.781094],                   ['szechwan garden', 41.485615, -81.787890]                  ]         },         park:{           label:'parks',           //the category may default-checked when want           //uncomment next line           //checked:true,          icon:'images/map-marker/02.png',           items: [                   ['lakewood park', 41.494457, -81.797605],                   ['madison park', 41.476969, -81.781929],                   ['tuland park', 41.464052, -81.788041]                  ]         }         },            infowindow = new google.maps.infowindow(),            //  div place buttons           ctrl=$('<div/>').css({background:'#fff',                                 border:'1px solid #000',                                 padding:'4px',                                 margin:'2px',                                 textalign:'center'                                });           //show all-button           ctrl.append($('<input>',{type:'button',value:'show all'})                         .click(function(){                           $(this).parent().find('input[type="checkbox"]')                             .prop('checked',true).trigger('change');                         }));           ctrl.append($('<br/>'));            //clear all-button           ctrl.append($('<input>',{type:'button',value:'clear all'})                         .click(function(){                           $(this).parent().find('input[type="checkbox"]')                             .prop('checked',false).trigger('change');                         }));           ctrl.append($('<hr/>'));            //now loop on categories           $.each(places,function(c,category){              //a checkbox fo category             var cat=$('<input>',{type:'checkbox'}).change(function(){                $(this).data('goo').set('map',(this.checked)?map:null);             })               //create data-property google.maps.mvcobject               //this mvc-object show/hide category                .data('goo',new google.maps.mvcobject)               .prop('checked',!!category.checked)                //this initialize map-property of mvcobject               .trigger('change')                //label checkbox               .appendto($('<div/>').css({whitespace:'nowrap',textalign:'left'})                 .appendto(ctrl))               .after(category.label);                //loop on items(markers)               $.each(category.items,function(m,item){                  var marker=new google.maps.marker({                         position:new google.maps.latlng(item[1],item[2]),                         title:item[0],                         icon:category.icon                       });                   //bind map-property of marker map-property                  //of mvcobject has been stored checkbox-data                   marker.bindto('map',cat.data('goo'),'map');                  google.maps.event.addlistener(marker,'click',function(){                     infowindow.setcontent(item[0]);                     infowindow.open(map,this);                  });               });            });           //use buttons-div map-control           map.controls[google.maps.controlposition.top_right].push(ctrl[0]);         }     );   google.maps.event.adddomlistener(window, 'load', map_init); 

thanks