<input id="education" name="education" class="easyui-combobox"

	data-options="method:'get',valueField:'id',textField:'name',multiple:true,panelHeight:'auto',required:true,

	url:'${ctx}',editable:false,

	value:'aa',

	loadFilter:function(data){

	if(null==data) return [];

	var dd = [];

	dd.push({id:'aa',name:'不限'});

	for(var i=0; i<data.length; i++){

		dd.push(data[i]);

	}

	return dd;

}"/>

var education = $("#education").combobox('getValues');//获取多选值

//判断是否包含aa

function contains(arr) {

	var i = arr.length-1;

	// 从数组中判断str是否存在

	while (i--) {

		if (arr[i] === 'aa') {

			return true;

		}

	}

	return false;

}

//移除包含的字符串

function removeStr(arr) {

	var arrNew = new Array();

	//从数组中删除指定str

	for(var i = 0; i < arr.length; i++){

		if('aa' != arr[i]) {

			arrNew.push(arr[i]);

		}

	}

	return arrNew.toString();

}