function searchbus(){
	var x=document.searchform;
	if(x.searchfor.value == 'e.g. hotel,taxi') x.searchfor.value='';
	if(x.company.value == 'e.g. kfc') x.company.value='';
	if(x.location.value == 'e.g worthing, west sussex') x.location.value='';

}