function updateModels(c,a,d){var e=false;var b=this;var f="make="+c;if(d){f=f+"&dealer="+d}if(window.XMLHttpRequest){b.xmlHttpReq=new XMLHttpRequest()}else{if(window.ActiveXObject){b.xmlHttpReq=new ActiveXObject("Microsoft.XMLHTTP")}}b.xmlHttpReq.open("POST","/cgi-bin/models.cgi",true);b.xmlHttpReq.setRequestHeader("Content-Type","application/x-www-form-urlencoded");b.xmlHttpReq.onreadystatechange=function(){if(b.xmlHttpReq.readyState==4){a.innerHTML=b.xmlHttpReq.responseText}};b.xmlHttpReq.send(f)};