function showApartment(obj,target){
	var type=obj.value;	
	var selectObj=target;
	selectObj.options.length=0;
	if(type==1){
		areaString=document.f1.apartment.value;
		arr=areaString.split(',');
		for(i=0;i<arr.length-1;i++){
			str=arr[i].toString();			
			aa=str.split(':');
			selectObj.options[selectObj.options.length]=new Option(aa[1],aa[0]);
		}
	}else if(type==2){
		areaString=document.f1.villa.value;
		arr=areaString.split(',');
		for(i=0;i<arr.length-1;i++){
			str=arr[i].toString();			
			aa=str.split(':');
			selectObj.options[selectObj.options.length]=new Option(aa[1],aa[0]);
		}
	}else if(type==3){
		areaString=document.f1.office.value;
		arr=areaString.split(',');
		for(i=0;i<arr.length-1;i++){
			str=arr[i].toString();			
			aa=str.split(':');
			selectObj.options[selectObj.options.length]=new Option(aa[1],aa[0]);
		}
	}else if(type==4){
		areaString=document.f1.courtyard.value;
		arr=areaString.split(',');
		for(i=0;i<arr.length-1;i++){
			str=arr[i].toString();			
			aa=str.split(':');
			selectObj.options[selectObj.options.length]=new Option(aa[1],aa[0]);
		}
	}else if(type==5){
		areaString=document.f1.sa.value;
		arr=areaString.split(',');
		for(i=0;i<arr.length-1;i++){
			str=arr[i].toString();			
			aa=str.split(':');
			selectObj.options[selectObj.options.length]=new Option(aa[1],aa[0]);
		}
	}else{
		selectObj.options[selectObj.options.length]=new Option("==select type==","-1");
	}
}