londrum - 2:12 pm on Nov 29, 2010 (gmt 0)
i would test the line first with actual values, rather than variables, to see if it does anything. so get rid of all the variables stuff, and just write in the values you want and run it.
while (have_posts()) : the_post();
var blah = new GlatLng(51.111111, -0.111111);
if that doesn't do what you're expecting then the problem must be elsewhere