var strsel1  = new Array("","鳥取","島根","岡山","広島","山口");   

var strsel21 = new Array(""); 

var strsel22 = new Array("","鳥取","倉吉","米子"); 

var strsel23 = new Array("","松江","出雲","浜田","益田");

var strsel24 = new Array("","岡山","倉敷","津山","高梁","岡山東"); 

var strsel25 = new Array("","広島","広島北","廿日市","福山","尾道","東広島","三次","呉"); 

var strsel26 = new Array("","周南","柳井","萩","宇部","岩国","山口","下関"); 

function CreateList()
{ 
	Create(document.getElementById('Lv1'), strsel1); 
	Create(document.getElementById('Lv2'), strsel21);
	
} 

function CreateList2()
{ 
	if(document.getElementById('Lv1').options.selectedIndex == 0){ 
		Create(document.getElementById('Lv2'), strsel21);
	}
	else if(document.getElementById('Lv1').options.selectedIndex == 1){
		Create(document.getElementById('Lv2'), strsel22);     
	}	
	else if(document.getElementById('Lv1').options.selectedIndex == 2){
		Create(document.getElementById('Lv2'), strsel23);     
	} 
	else if(document.getElementById('Lv1').options.selectedIndex == 3){
		Create(document.getElementById('Lv2'), strsel24);     
	} 
	else if(document.getElementById('Lv1').options.selectedIndex == 4){
		Create(document.getElementById('Lv2'), strsel25);     
	} 
	else if(document.getElementById('Lv1').options.selectedIndex == 5){
		Create(document.getElementById('Lv2'), strsel26);     
	} 
} 

function CreateList3()
{ 
	if(document.form.Lv1[1].checked == true){ 
		Create(document.getElementById('Lv2'), strsel22);
	}
	else if(document.form.Lv1[2].checked == true){
		Create(document.getElementById('Lv2'), strsel23);     
	}	
	else if(document.form.Lv1[3].checked == true){
		Create(document.getElementById('Lv2'), strsel24);     
	} 
	else if(document.form.Lv1[4].checked == true){
		Create(document.getElementById('Lv2'), strsel25);     
	} 
	else if(document.form.Lv1[5].checked == true){
		Create(document.getElementById('Lv2'), strsel26);     
	} 
	else {
		Create(document.getElementById('Lv2'), strsel21);     
	}
} 

function Create(objList, objArray) 

{ 
	var nMax = objArray.length;
	var nLoop = 0; 
	for (nLoop = 0; nLoop < nMax; nLoop++){ 
		
		oAdd = document.createElement('option');

		if(objList.childNodes[nLoop]  != undefined)
			objList.removeChild(objList.childNodes[nLoop]);

		objList.appendChild(oAdd);

		objList.childNodes[nLoop].setAttribute('value',objArray[nLoop]);

		oAddx= document.createTextNode(objArray[nLoop]);

		if(objList.childNodes[nLoop].firstChild  != undefined)
			objList.childNodes[nLoop].removeChild(objList.childNodes[nLoop].firstChild);

		objList.childNodes[nLoop].appendChild(oAddx);
	}

	objList.length=nLoop;
}