function buildURL(stype)
{ 
  if (((navigator.appName == "Netscape") ||
  (navigator.appName == "Microsoft Internet Explorer")) && 
  (parseFloat(navigator.appVersion) >= 3.0)) 
       {  
	var str="?SRC="+escape(document.ypform.SRC.value)+"&STYPE="+stype+"&C="+
   	escape(document.ypform.C.value)+"&N="+escape(document.ypform.N.value)
        
   	if (stype == "D") {
          return str+"&RT="+escape(document.ypform.T.value)+"&RS=pr"+
          "&T="+escape(document.ypform.T.value)}       
   	else {
          return str+"&T="+escape(document.ypform.T.value)+"&S=PR"
         }
        }
  else { 
        return "?SRC=pr2&STYPE=S&PG=L&R=N&C=automobiles+-+rental&N=&T=&S="}
}
// -->



function buildURL_tc(stype)
{
  if (((navigator.appName == "Netscape") ||
  (navigator.appName == "Microsoft Internet Explorer")) &&
  (parseFloat(navigator.appVersion) >= 3.0))
       {
        var str="?SRC="+escape(document.ypform.SRC.value)+"&STYPE="+stype+"&S="+"&N="+escape(document.ypform.N.value)+"&search=find+it"

        if (stype == "D") {
          return str+"&RT="+escape(document.ypform.T.value)+"&RS=pr"+
          "&T="+escape(document.ypform.T.value)}
        else {
                return str+"&T="+
                escape(document.ypform.T.options[document.ypform.T.selectedIndex].value)}
        }
  else {
        return "?SRC=pr2&STYPE=S&PG=L&R=N&C=automobiles+-+rental&N=&T=&S="}
}

function validate()
{
        if ((document.ypform.C.value == "") &&
            (document.ypform.N.value == "")) {
                if (document.ypform.STYPE.value == "S") {
                        alert("You must enter a business name or a category!");
			document.ypform.C.focus();
                        return(false);
                } else if ((document.ypform.A.value == "") &&
                           (document.ypform.X.value == "") &&
                           (document.ypform.P.value == "") &&
                           (document.ypform.E.value == "")
                          ) {
                                alert("You must enter a business name, category, street, or phone number!");
                                return(false);
                }
        }
        return(true);
}