function find_route () {

dep = route.destination.value
pc = route.postcode.value
ld = route.country.value

	if (pc.length==0){
			alert ("You forgot to fill in a postal code")
	} else {
		strurl = "http://mapmachinedd03.lokatienet.nl/asp/tiscali/address.asp?task=address&street=&city=&country=" + ld + "&zipcode=" + pc  
		switch (dep )
			{
			case "1" :
				strurl = strurl + "&street=&city=&country=NL&zipcode=4906CG";
				break;
			case "2" :
				strurl = strurl + "&street=wenckebachstraat&city=&country=NL&zipcode=1951" ;
				break;
			case "3" :
				strurl = strurl + "&street=&city=&country=PL&zipcode=81-240" ;
				break ;
			}
	        win = window.open ( strurl )	 
	}
}