Jon,
I found something interseting by viewing source of the page. The onclick javascript does not look correct. onclick="dnn.xmlhttp.doCallBack('_ctl0 dnn_ctr368_RealEstate_Dispatch__ctl0',
dnn.dom.getById('dnn_ctr368_RealEstate_Dispatch__ctl0__ctl44_TextBox1').value + 'Blue.ascx',
successFunc,'dnn_ctr368_RealEstate_Dispatch__ctl0__ctl44',errorFunc,null,null,null)
What is extra space between in the first argument? It does not match call.
dnn_xmlhttp.prototype.doCallBack = function(sControlId, sArg, pSuccessFunc, sContext, pFailureFunc, pStatusFunc, bAsync, sPostChildrenId)
How about non printable char before blue.asx?
What could be the issue?