สอบถามเรื่อง drop down list เลือก ภาค > >จังหวัด > .... ปัญหาการโหลดหน้า

function ListProvince(SelectValue)
		{
			frmMain.ddlProvince.length = 0
			frmMain.ddlAmphur.length = 0
			frmMain.ddlDistrict.length = 0
			document.frmMain.ddlProvince.disabled=false
			//*** Insert null Default Value ***//
			var myOption = new Option('++ เลือกจังหวัด ++','')  
			frmMain.ddlProvince.options[frmMain.ddlProvince.length]= myOption
			if(SelectValue==""){
				frmMain.ddlProvince.length = 0
				document.frmMain.ddlAmphur.disabled=true
				document.frmMain.ddlProvince.disabled=true
				document.frmMain.ddlDistrict.disabled=true
			}
						
				x = 1;
				mySubList = new Array();
				
				strGroup = 7;
				strValue = "1";
				strItem = "กรุงเทพมหานคร   ";
				mySubList[x,0] = strItem;
				mySubList[x,1] = strGroup;
				mySubList[x,2] = strValue;
				if (mySubList[x,1] == SelectValue){
					var myOption = new Option(mySubList[x,0], mySubList[x,2])  
					frmMain.ddlProvince.options[frmMain.ddlProvince.length]= myOption					
				}
						
				x = 2;
				mySubList = new Array();
				
				strGroup = 7;
				strValue = "2";
				strItem = "สมุทรปราการ   ";
				mySubList[x,0] = strItem;
				mySubList[x,1] = strGroup;
				mySubList[x,2] = strValue;
				if (mySubList[x,1] == SelectValue){
					var myOption = new Option(mySubList[x,0], mySubList[x,2])  
					frmMain.ddlProvince.options[frmMain.ddlProvince.length]= myOption					
				}
    .
    .
    .
   XXXX