jquery - Javascript function to select images only works on first image -

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here function i'm using select photos. become selected being added array , having green check mark placed on them. when clicked again, should removed array, , check mark should removed well.

this works fine, except if select, unselect photo, not let select again after that. exception first photo in list (top left) , i'm not sure why is. can select , unselect many times , works fine. photos behave this.

here code:

var selectedphotos = new array(); function selectvehicle(photoid) {     if ( selectedphotos.indexof(photoid) > -1 ) {         $('#check'+photoid).css('z-index', '-1');         selectedphotos.splice(photoid, 1);     } else {         selectedphotos.push(photoid);         $('#check'+photoid).css('z-index', '1');     }  }

you can view page in action here: http://lindseymotors.com/unassignedphotos.php

you need pass index of element remove in splice index @ start changing array

var index = selectedphotos.indexof(photoid); if(index > -1){     selectedphotos.splice(index , 1); }

complete code

var selectedphotos = new array(); function selectvehicle(photoid) {     var index = selectedphotos.indexof(photoid);     if(index > -1){         selectedphotos.splice(index, 1);         $('#check'+photoid).css('z-index', '-1');     } else {         selectedphotos.push(photoid);         $('#check'+photoid).css('z-index', '1');     } }

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