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		s1.change( function() {
			region.initSlt2(s2, '', region.ds[s1.val()]);
		});
		region.initSlt2(s2, aR2Val, region.ds[s1.val()]);
	},

	initSlt2 : function(aObj, aVal, aData) {
		aObj.empty().append("<option value=''>请选择...</option>");
		if (aData!=null) {
			var select;
			$j.each(aData, function(i, n){
				if (aVal==i)
					select = ' selected';
				else
					select = '';
				aObj.append("<option value='" + i + "'" + select + ">" + i + "</option>");
			});
		}
	}
};

 

 

此代码可以运用，但是存在小问题，initRegion3是无法选中的，差一个判断，下面的例子没有任何问题。

var classify = {
	ds : {
	"睿智睿力":{
					"1段":{"盒装":["400g"],"罐装":["900g","200g"]},
					"2段":{"盒装":["400g"],"罐装":["900g","200g"]},
					"3段":{"盒装":["400g"],"罐装":["900g","200g"]}
		        },
	"启智启力":{
		        	"1段":{"袋装":["400g"],"盒装":["400g"],"罐装":["900g","200g"]},
		        	"2段":{"袋装":["400g"],"盒装":["400g"],"罐装":["900g","200g"]},
		        	"3段":{"袋装":["400g"],"盒装":["400g"],"罐装":["900g","200g"]}
		    },"其他":{}},
	initClassify4 : function(aR1Id, aR2Id, aR3Id,aR4Id, aR1Val, aR2Val, aR3Val,aR4Val) {
		var s1 = $j('#' + aR1Id);
		var s2 = $j('#' + aR2Id);
		var s3 = $j('#' + aR3Id);
		var s4 = $j('#' + aR4Id);
		
		if (aR1Val==''){ 
			aR1Val = 'ALL';
			s2.hide();
			s2.empty();
			s3.hide();
			s3.empty();
			s4.hide();
			s4.empty();
			classify.initSlt4(s1, aR1Val, classify.ds);
		}else{
			classify.initSlt4(s1, aR1Val, classify.ds);
			if(aR2Val==''){
				aR2Val= 'ALL';
				s3.hide();
				s3.empty();
				s4.hide();
				s4.empty();
				classify.initSlt4(s2, aR2Val, classify.ds[s1.val()]);
			}else{
				classify.initSlt4(s2, aR2Val, classify.ds[s1.val()]);
				if(aR3Val==''){
					aR3Val='ALL';
					s4.hide();
					s4.empty();
					classify.initSlt4(s3, aR3Val, classify.ds[s1.val()][s2.val()]);
				}else{
					classify.initSlt4(s3, aR3Val, classify.ds[s1.val()][s2.val()]);
					if(aR4Val==''){
						aR4Val='ALL';
						classify.initSlt4(s4, aR4Val, classify.ds[s1.val()][s2.val()][s3.val()]);
					}else{
						classify.initSlt4(s4, aR4Val, classify.ds[s1.val()][s2.val()][s3.val()]);
					}
				}
			}
		}

		s1.change( function() {
			var data = classify.ds[s1.val()];
			classify.initSlt4(s2, '',data);
			s3.hide();
			s3.empty();
			s4.hide();
			s4.empty();
			
			if (data==null) {
				s2.hide();
				s2.empty();
			}
			else {
				s2.show();
			}
		});
		s2.change( function() {
			var data2 = classify.ds[s1.val()][s2.val()];
			classify.initSlt4(s3, '', data2);
			
			s4.hide();
			s4.empty();
			
			if(data2==null)
			{
				s3.hide();
				s3.empty();
			}else{
				s3.show();
			}
		});
		s3.change( function() {
			var data3 =  classify.ds[s1.val()][s2.val()][s3.val()];
			classify.initSlt4(s4, '', data3);
			if(data3==null){
				s4.hide();
				s4.empty();
			}else{
				s4.show();
			}
		});
	},

	initSlt4 : function(aObj, aVal, aData) {		
		aObj.empty();
		if (aData!=null) {
			aObj.append("<option value=''>请选择...</option>");
			var select;
			if ($j.isArray(aData)) {
				if (aData.length>0) {
					$j.each(aData, function(i, n){
						if (aVal==n)
							select = ' selected';
						else
							select = '';
						aObj.append("<option value='" + n + "'" + select + ">" + n + "</option>");
					});
				}
				else {
					aObj.empty();
				}
			}
			else {
				$j.each(aData, function(i, n){
					if (aVal==i)
						select = ' selected';
					else
						select = '';
					aObj.append("<option value='" + i + "'" + select + ">" + i + "</option>");
				});
			}
		}
	},

	initClassify3 : function(aR1Id, aR2Id, aR3Id, aR1Val, aR2Val, aR3Val) {
		var s1 = $j('#' + aR1Id);
		var s2 = $j('#' + aR2Id);
		var s3 = $j('#' + aR3Id);
		if (aR1Val==''){ 
			aR1Val = 'ALL';
			s2.hide();
			s2.empty();
			s3.hide();
			s3.empty();
			classify.initSlt3(s1, aR1Val, classify.ds);
		}else{
			classify.initSlt3(s1, aR1Val, classify.ds);
			if(aR2Val==''){
				aR2Val= 'ALL';
				s3.hide();
				s3.empty();
				classify.initSlt3(s2, aR2Val, classify.ds[s1.val()]);
			}else{
				classify.initSlt3(s2, aR2Val, classify.ds[s1.val()]);
				if(aR3Val==''){
					aR3Val='ALL';
					classify.initSlt3(s3, aR3Val, classify.ds[s1.val()][s2.val()]);
				}else{
					classify.initSlt3(s3, aR3Val, classify.ds[s1.val()][s2.val()]);
				}
			}
		}

		s1.change( function() {
			var data = classify.ds[s1.val()];
			classify.initSlt3(s2, '',data);
			s3.hide();
			s3.empty();
			if (data==null) {
				s2.hide();
				s2.empty();
			}
			else {
				s2.show();
			}
		});
		s2.change( function() {
			var data2 = classify.ds[s1.val()][s2.val()];
			classify.initSlt3(s3, '', data2);
			
			if(data2==null)
			{
				s3.hide();
				s3.empty();
			}else{
				s3.show();
			}
		});
	},

	initSlt3 : function(aObj, aVal, aData) {
		aObj.empty();
		if (aData!=null) {
			aObj.append("<option value=''>请选择...</option>");
			var select;
			if ($j.isArray(aData)) {
				if (aData.length>0) {
					$j.each(aData, function(i, n){
						if (aVal==n)
							select = ' selected';
						else
							select = '';
						aObj.append("<option value='" + n + "'" + select + ">" + n + "</option>");
					});
				}
				else {
					aObj.empty();
				}
			}
			else {
				$j.each(aData, function(i, n){
					if (aVal==i)
						select = ' selected';
					else
						select = '';
					aObj.append("<option value='" + i + "'" + select + ">" + i + "</option>");
				});
			}
		}
	},

	initClassify2 : function(aR1Id, aR2Id, aR1Val, aR2Val) {
		var s1 = $j('#' + aR1Id);
		var s2 = $j('#' + aR2Id);
		if (aR1Val=='') aR1Val = 'ALL';
		classify.initSlt2(s1, aR1Val, classify.ds);
		s1.change( function() {
			classify.initSlt2(s2, '', classify.ds[s1.val()]);
		});
		classify.initSlt2(s2, aR2Val, classify.ds[s1.val()]);
	},

	initSlt2 : function(aObj, aVal, aData) {
		aObj.empty().append("<option value=''>请选择...</option>");
		if (aData!=null) {
			var select;
			$j.each(aData, function(i, n){
				if (aVal==i)
					select = ' selected';
				else
					select = '';
				aObj.append("<option value='" + i + "'" + select + ">" + i + "</option>");
			});
		}
	}
};

 代码片段以及调用js的语句

<td>产品名称：
    <select name="taobaoProClass" id="taobaoProClass"></select>
    <select name="taobaoProSect" id="taobaoProSect"></select>	
    <select name="taobaoProPackage" id="taobaoProPackage"></select>
    <select name="taobaoProGram" id="taobaoProGram"></select>	
</td>


<script type="text/javascript">
<!--
$j = jQuery;
$j(document).ready(function(){
	classify.initClassify4('taobaoProClass','taobaoProSect','taobaoProPackage','taobaoProGram','${taobaoProClass}','${taobaoProSect}','${taobaoProPackage}','${taobaoProGram}');
});
//-->
</script>

 js代码的意思classify是js的文件名称，initClassify4是里面的方法，里面的值分别是id和值

评论

1 楼 斯文小狐狸 2014-09-10  

人才中的人才。。。