I have a whole bunch of files called xxx_Page1.htm at a domain, where xxx is a type of animal. I have a script that iterates through a known list of animals setting MyVar for each one. The following line works just fine at bringing these files on to a web page inside MyDiv:

document.getEle mentById('MyDiv ').innerHTML = "<iframe src='"+MyVar+"_ Page1.htm'></iframe>";

However the the files...