Layouts & Web Publishing

I am trying to figure out how to get Filemaker recognize when different lay outs should be used. I work for a missing childrens org and we've created a searchable DB so that our web site visitors can browse through all the missing children in our Database and print out posters of the ones they choose. It works fine but we can only use one lay out "Child photo, case info and contact information" but sometimes we need to have use a different layout, like when there is an abductor photo or information, or if there are multiple children missing and an abductor. So my question is, would there be a way to have filemaker "know" when to show the different layouts if the information to fill it exists? Here is our web page www.vca.org click on the "Missing Children" button to get to the searchable DB

Thanks so much for taking the time to read this. I appreciate any help i can get. I catch on quick.

~Melissa