var province="天津";
var country="中国";
var city="天津";
var district="滨海新区,市区";
//联动下拉框

function page_load(stringItem,selItem)
{

	
	var itemArray = stringItem.split(";");
	var itemCount = itemArray.length
	for(i=0;i<itemCount;i++)
	{
		var subItemArray=itemArray[i].split(",");
		var subItemCount = subItemArray.length;
		for(j=0;j<subItemCount;j++)
		{
			var opt=document.createElement("OPTION");
			opt.text = subItemArray[j];
			opt.value =subItemArray[j];
			selItem.add(opt);
		}
	}
	selItem .fireEvent("onchange");
}


function selectOnchange(mainitem,subitem,mainCategory,subCategory)
{
	
	var index=0;
	subitem.length=0;
	if(mainitem.selectedIndex ==-1 && mainitem.options.length>0)
	{
		mainitem.selectedIndex=0;
	}
	 if(mainitem.selectedIndex >=0)
	 {
		mainItemValue = mainitem.options[mainitem.selectedIndex].value;
	}
	var mainCategoryArray = mainCategory.split(";");
	for(i=0;i<mainCategoryArray.length;i++)
	{
		var mainSubCategoryArray= mainCategoryArray[i].split(",");
		
		var isFound = false;
		for(j=0;j<mainSubCategoryArray.length;j++)
		{
			if(mainSubCategoryArray[j]!=mainItemValue)
			{
			
				index++
			}
			else
			{
				
				isFound = true;
				break;
			}
			
		}
		
		if(isFound)
			break;
	}


	var subCategoryItems = subCategory.split(";");
	
	
	var selcategory = subCategoryItems[index];
	if(selcategory==undefined)
	{
		
		
		 var optEmpty=document.createElement("OPTION");
		 optEmpty.text ="区域";
		 optEmpty.value ="";
		subitem.add(optEmpty);
		 optEmpty.selected =true;
		return; 
	}
	var items = selcategory.split(",");
	
	var itemCount= items.length;
	if  ( itemCount > 0 ) 
	{
	  
	    var optEmpty=document.createElement("OPTION");
	    if(subitem.name.indexOf("District")>0)
			optEmpty.text ="区域";
	    else
			optEmpty.text ="";
		optEmpty.value ="";
		subitem.add(optEmpty);
		optEmpty.selected =true;
	} 

	
	
	for(i=0;i<itemCount;i++)
	{
		var opt=document.createElement("OPTION");
		opt.text = items[i];
		opt.value =items[i];
		subitem.add(opt);
	}
	

	

	
	subitem.fireEvent("onchange");
	
}