function ajax_index_product(file,content_id){
	//构造地址
	//创建ajax对象
	 var ajaxObj = null;
		 if(window.XMLHttpRequest){
			 ajaxObj = new XMLHttpRequest();
		 } else if(window.ActiveXObject){
			 ajaxObj = new ActiveXObject("Microsoft.XMLHTTP");
		 } else {
			return;
		 }
	 //状态变化
	 ajaxObj.onreadystatechange = function(){
		 if(ajaxObj.readyState == 4){
			document.getElementById(content_id).innerHTML=ajaxObj.responseText;
		 }else{
			document.getElementById(content_id).innerHTML="<div style=\"height:24px; width:85%; text-align:center;  float:left\"><img src=\"images/icon/loading_1.gif\" width=\"20\" height=\"20\" align=\"absmiddle\" />加载中...</div>";
		 }
	 }
	 
	 ajaxObj.open ('GET',file, true);
	 ajaxObj.send ('');
}

//
function index_ajax(id,content_id){
	switch (id){
		case 1:
		document.getElementById("index_ajax_1_1").className='r_t_1';
		document.getElementById("index_ajax_1_2").className='r_t_2';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_1&class_1_id=1&class_2_id=2",content_id);
		break;
		case 2:
		document.getElementById("index_ajax_1_1").className='r_t_2';
		document.getElementById("index_ajax_1_2").className='r_t_1';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_1&class_1_id=2&class_2_id=17",content_id);
		break;
	}
}
function index_ajax_2(id,content_id){
	switch (id){
		case 1:
		document.getElementById("index_ajax_2_1").className='center_font_1';
		document.getElementById("index_ajax_2_2").className='center_font_2';	
		document.getElementById("index_ajax_2_3").className='center_font_2';	
		document.getElementById("index_ajax_2_4").className='center_font_2';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_2&class_1_id=2&class_2_id=6",content_id);
		break;
		case 2:
		document.getElementById("index_ajax_2_1").className='center_font_2';
		document.getElementById("index_ajax_2_2").className='center_font_1';	
		document.getElementById("index_ajax_2_3").className='center_font_2';	
		document.getElementById("index_ajax_2_4").className='center_font_2';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_2&class_1_id=2&class_2_id=8",content_id);
		break;
		case 3:
		document.getElementById("index_ajax_2_1").className='center_font_2';
		document.getElementById("index_ajax_2_2").className='center_font_2';	
		document.getElementById("index_ajax_2_3").className='center_font_1';	
		document.getElementById("index_ajax_2_4").className='center_font_2';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_2&class_1_id=2&class_2_id=14",content_id);
		break;
		case 4:
		document.getElementById("index_ajax_2_1").className='center_font_2';
		document.getElementById("index_ajax_2_2").className='center_font_2';	
		document.getElementById("index_ajax_2_3").className='center_font_2';	
		document.getElementById("index_ajax_2_4").className='center_font_1';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_2&class_1_id=2&class_2_id=9",content_id);
		break;
	}
}
function index_ajax_3(id,content_id){
	switch (id){
		case 1:
		document.getElementById("index_ajax_3_1").className='center_font_1';
		document.getElementById("index_ajax_3_2").className='center_font_2';	
		document.getElementById("index_ajax_3_3").className='center_font_2';	
		//document.getElementById("index_ajax_3_4").className='center_font_2';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_3&class_1_id=2&class_2_id=27",content_id);
		break;
		case 2:
		document.getElementById("index_ajax_3_1").className='center_font_2';
		document.getElementById("index_ajax_3_2").className='center_font_1';	
		document.getElementById("index_ajax_3_3").className='center_font_2';	
		//document.getElementById("index_ajax_3_4").className='center_font_2';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_3&class_1_id=2&class_2_id=15",content_id);
		break;
		case 3:
		document.getElementById("index_ajax_3_1").className='center_font_2';
		document.getElementById("index_ajax_3_2").className='center_font_2';	
		document.getElementById("index_ajax_3_3").className='center_font_1';	
		//document.getElementById("index_ajax_3_4").className='center_font_2';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_3&class_1_id=2&class_2_id=13",content_id);
		break;
		case 4:
		document.getElementById("index_ajax_3_1").className='center_font_2';
		document.getElementById("index_ajax_3_2").className='center_font_2';	
		document.getElementById("index_ajax_3_3").className='center_font_2';	
		//document.getElementById("index_ajax_3_4").className='center_font_1';	
		ajax_index_product("include/ajax.php?ajax_action=index_ajax_3&class_1_id=2&class_2_id=27",content_id);
		break;
	}
}

//后台三级分类
function ajax_get_content(file,content_id){
	//构造地址
	//创建ajax对象
	 var ajaxObj = null;
		 if(window.XMLHttpRequest){
			 ajaxObj = new XMLHttpRequest();
		 } else if(window.ActiveXObject){
			 ajaxObj = new ActiveXObject("Microsoft.XMLHTTP");
		 } else {
			return;
		 }
	 //状态变化
	 ajaxObj.onreadystatechange = function(){
		 if(ajaxObj.readyState == 4){
			document.getElementById(content_id).innerHTML=ajaxObj.responseText;
		 }else{
			document.getElementById(content_id).innerHTML="加载中...";
		 }
	 }
	 
	 ajaxObj.open ('GET',file, true);
	 ajaxObj.send ('');
}