function changeTypeDropValues(formname,select){
	
	var formname = formname;
	var selectedIndex = select.options.selectedIndex;
    var selectedValue = select.options[selectedIndex].value;
	var countryID  = formname.country_id.value;
		
	switch (countryID){
		case "200":
			switch (selectedValue) {
				case "3":
				case "4":
					priceRange = price_uk_rental;
				break;
				case "5":
					priceRange = price_uk_sales;
				break;
				case "6":
					priceRange = price_uk_holidayhomes;
				break;
			}
		break;
		case "202":
			switch (selectedValue) {
				case "3":
				case "4":
					priceRange = price_usa_rental;
				break;
				case "5":
					priceRange = price_usa_sales;
				break;
				case "6":
					priceRange = price_usa_holidayhomes;
				break;
			 }
		break;
		
	}
	
	for(i=formname.price_range.options.length;i>=0;i--){
		formname.price_range.options[i]=null;
	}
	
	for(i=0;i<priceRange.length;i++){
		formname.price_range.options[formname.price_range.options.length]=new Option(priceRange[i][1], priceRange[i][0],false, false);
	}
	
	changeSearchForm(selectedValue);
	
}


function changeRegionDropValues(formname,select){
	
	var formname = formname;
	var selectedIndex = select.options.selectedIndex;
    var selectedValue = select.options[selectedIndex].value;
	var searchType = formname.type.options[selectedIndex].value;
	
	switch (selectedValue){
		case "200":
			var changetoregions = region_200;
		break;
		case "202":
			var changetoregions = region_202;
		break;
		
	}
	
	for(i=formname.region_id.options.length;i>=0;i--){
		formname.region_id.options[i]=null;
	}
	
	for(i=0;i<changetoregions.length;i++){
		regionChange = changetoregions[i][1];
		formname.region_id.options[formname.region_id.options.length]=new Option(regionChange, changetoregions[i][0],false, false);
	}
	
	switch (searchType){
				case "3":
					priceRange = (selectedValue===200) ? price_uk_rental : price_usa_rental;	
				break;
				case "4":
				break;
				case "5":
				break;
				case "6":
				break;
	}
	
	
}



function changeSearchForm(select){
	
	var selectedIndex = select.options.selectedIndex;
    var selectedValue = select.options[selectedIndex].value;
	
	switch (selectedValue){
		case "3":
			toggle_form('flatshare_form');	
		break;
		case "6":
			toggle_form('holidayhome_form');	
		break;
		case "4":
			toggle_form('rental_form');	
		break;
		case "5":
			toggle_form('sale_form');	
		break;
	}
}

function toggle_form(divid) {
	hide_all_forms();
	if (document.getElementById){
	var lay = document.getElementById(divid);
    lay.style.display = 'block';
	}

}

function hide_all_forms() {
	 if (document.getElementById){
	 var lay1 = document.getElementById('flatshare_form');
     lay1.style.display = 'none';
	 var lay2 = document.getElementById('holidayhome_form');
     lay2.style.display = 'none';
	 var lay3 = document.getElementById('rental_form');
     lay3.style.display = 'none';
	 var lay4 = document.getElementById('sale_form');
     lay4.style.display = 'none';
	 }

}