fldCity = "City";
strErrorHeader = "Error";
errMustBeSelected = "Must be selected";

function Error (strField, strError)
	{
	window.alert (strErrorHeader + ":\n\n" + strField + "\n\n" + strError);
	return false;
	}

function CheckDdl(ddlName, strField)
{
    Result = true;
    if ( document.getElementById(ddlName).value == -1 )
    {
        Result = Error(strField, errMustBeSelected);          
    }    
    return Result;
}



function RedirectToContactPage()
    {
        if ( document.getElementById("ddlCity") != null)
        { 
            if (CheckDdl ("ddlCity", fldCity))
            {              
                //window.alert(document.getElementById("ddlCity").options [document.getElementById("ddlCity").selectedIndex].value  );
                window.location.href = document.getElementById("ddlCity").options [document.getElementById("ddlCity").selectedIndex].value;  
            } 
        } 
    }