admin_cou_cho.js

做的一个毕业设计（学生档案管理系统）

function deleteAllOptions(sel){sel.options.length=0;}

function checkCols(){
	var strid = $("select")[2].options[$("select")[2].selectedIndex].value*1;
	if (strid==0){
		fillSel("请选择...",$("select")[3]);
		$("span")[1].innerHTML="";
	}else{
		postCols(strid);

	}
}	

function postCols(Col_id){
	var xmlhttp;
	try{
		xmlhttp=new XMLHttpRequest();
		}
	catch(e){
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	xmlhttp.onreadystatechange=function(){
	if (xmlhttp.readyState==4){
		if (xmlhttp.status==200){
			var data=xmlhttp.responseText;

			id_result(data);	
			}
		else{
			fillSel("参数传输失败！",$("select")[3]);
			$("span")[1].innerHTML="<img src='../images/reg_yesno.gif' alt='参数传输失败！'>";
			}
		}
	else{
		fillSel("正在刷新...",$("select")[3]);
		$("span")[1].innerHTML="<img src='images/loading.gif' alt='正在刷新专业下拉列表......'>11111";
		}
	}
	var BaseURL="admin_res_check.asp"
	var url = BaseURL + "?timeStamp=" + new Date().getTime();
	xmlhttp.open("post", url, true);
	xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded; charset=gb2312');
	xmlhttp.send("Col_id="+escape(Col_id));	
}
function id_result(data){
	
	var pronames
	var data_arr
	if(data!="0"){
		data = data.split('%%');
			$("select")[3].options.length=0;
			for(data_i=0;data_i<data.length;data_i++){
				data_arr=data[data_i];
				data_arr=data_arr.split('||');
				$("select")[3].options[data_i] = new Option(data_arr[1],data_arr[0]);
				}
			$("select")[3].selectedIndex = data_i;
			addOption(0,$("select")[3]);
			setSel("请选择...",$("select")[3])
		$("span")[1].innerHTML="<img src='../images/reg_yesok.gif' alt='班级下拉列表更新成功！'>";
		checkcourses0();
	}else{
		fillSel("当前还没有专业",$("select")[3]);
		$("span")[1].innerHTML="<img src='../images/reg_yesno.gif' alt='班级下拉列表为空，请添加班级！'>";
	}
}


function checkljs(){
	var strid = $("select")[0].options[$("select")[0].selectedIndex].value*1;
	if (strid==0){
		fillSel("请选择...",$("select")[1]);
		$("span")[0].innerHTML="";
	}else{
		postljs(strid);

	}
}	

function postljs(str_id){
	var xmlhttp;
	try{
		xmlhttp=new XMLHttpRequest();
		}
	catch(e){
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	xmlhttp.onreadystatechange=function(){
	if (xmlhttp.readyState==4){
		if (xmlhttp.status==200){
			var data=xmlhttp.responseText;

			id_result1(data);	
			}
		else{
			fillSel("参数传输失败！",$("select")[1]);
			$("span")[0].innerHTML="<img src='../images/reg_yesno.gif' alt='参数传输失败！'>";
			}
		}
	else{
		fillSel("正在刷新...",$("select")[1]);
		$("span")[0].innerHTML="<img src='images/loading.gif' alt='正在刷新项目下拉列表......'>";
		}
	}
	var BaseURL="admin_res_check.asp"
	var url = BaseURL + "?timeStamp=" + new Date().getTime();
	xmlhttp.open("post", url, true);
	xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded; charset=gb2312');
	xmlhttp.send("lj_id="+escape(str_id));	
}
function id_result1(data){
	
	var pronames
	var data_arr
	if(data!="0"){
		data = data.split('%%');
			$("select")[1].options.length=0;
			for(data_i=0;data_i<data.length;data_i++){
				data_arr=data[data_i];
				data_arr=data_arr.split('||');
				$("select")[1].options[data_i] = new Option(data_arr[1],data_arr[0]);
				}
			$("select")[1].selectedIndex = data_i;
			addOption(0,$("select")[1]);
			setSel("请选择...",$("select")[1])
		$("span")[0].innerHTML="<img src='../images/reg_yesok.gif' alt='项目下拉列表更新成功！'>";
		checkcourses1();
	}else{
		fillSel("当前还没有项目",$("select")[1]);
		$("span")[0].innerHTML="<img src='../images/reg_yesno.gif' alt='项目下拉列表为空，请添加项目！'>";
	}
}