function returns url of an attached image
function returns url of an attached image

mainakibui/kobocat,wesley1001/formhub,smn/onadata,eHealthAfrica/onadata,awemulya/fieldsight-kobocat,ehealthafrica-ci/onadata,wesley1001/formhub,jomolinare/kobocat,SEL-Columbia/formhub,smn/onadata,hnjamba/onaclone,SEL-Columbia/formhub,mainakibui/kobocat,makinacorpus/formhub,makinacorpus/formhub,spatialdev/onadata,sounay/flaminggo-test,hnjamba/onaclone,kobotoolbox/kobocat,kobotoolbox/kobocat,eHealthAfrica/formhub,ehealthafrica-ci/formhub,GeoODK/onadata,awemulya/fieldsight-kobocat,eHealthAfrica/formhub,ehealthafrica-ci/formhub,ehealthafrica-ci/formhub,sounay/flaminggo-test,mainakibui/kobocat,wesley1001/formhub,ehealthafrica-ci/onadata,ehealthafrica-ci/onadata,GeoODK/formhub,GeoODK/onadata,ehealthafrica-ci/onadata,ehealthafrica-ci/formhub,sounay/flaminggo-test,ultimateprogramer/formhub,kobotoolbox/kobocat,awemulya/fieldsight-kobocat,kobotoolbox/kobocat,makinacorpus/formhub,qlands/onadata,ultimateprogramer/formhub,GeoODK/formhub,piqoni/onadata,jomolinare/kobocat,qlands/onadata,mainakibui/kobocat,piqoni/onadata,jomolinare/kobocat,smn/onadata,piqoni/onadata,ultimateprogramer/formhub,spatialdev/onadata,spatialdev/onadata,qlands/onadata,awemulya/fieldsight-kobocat,GeoODK/formhub,makinacorpus/formhub,eHealthAfrica/onadata,qlands/onadata,jomolinare/kobocat,piqoni/onadata,smn/onadata,GeoODK/onadata,sounay/flaminggo-test,hnjamba/onaclone,eHealthAfrica/formhub,GeoODK/onadata,SEL-Columbia/formhub,wesley1001/formhub,eHealthAfrica/formhub,hnjamba/onaclone,eHealthAfrica/onadata,ultimateprogramer/formhub,spatialdev/onadata,SEL-Columbia/formhub