added modal_confirm class - creates a confirmation box on click, using the link's title tag for the message
added modal_confirm class - creates a confirmation box on click, using the link's title tag for the message

Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode