javascript - 无论如何运行代码都会出现问题

Question

我有一个 html 按钮

<input class="showOptions" type="button" style="width:100%" value="<%= (PRCDMU) %>" onclick="programSelector(this.value)" />

这会调用一些 JavaScript

    function programSelector(value){
    var origin = document.getElementById('origin').value();

    if(origin === ""){
            $( "#popup" ).dialog( "open" ); 
    }
    if(origin === "Product Specification"){
        url = 'http://brmappsvr:7018/Enquiries/CMENPROC.rpgle?ProductCode=' + value; 
        window.location.href = url;
    }elseif(origin === "Future Requirements Forecast")
        url = 'http://brmappsvr:7018/Enquiries/CMENPRF.rpgle?ProductCode=' + value;    
        window.location.href = url;
    }

然而，这个过程的一部分是 Jquery 中的弹出窗口。

     $(".showOptions").click(function(){
var $self = this.value;
$( "#popup" ).dialog({
            modal: true,
            width: 465,
            draggable: true,
            buttons: {
            "Product Specification": function() { 
            window.location.href = 'http://brmappsvr:7018/Enquiries/CMENPROC.rpgle?ProductCode=' + $self;  
            $( this ).dialog( "close" );
            },
                "Future Requirements Forecast": function() { //cancel
                window.location.href = 'http://brmappsvr:7018/Enquiries/CMENPRF.rpgle?ProductCode=' + $self;    
                $( this ).dialog( "close" );
            }
        }

});

});

我遇到的问题是，弹出窗口的显示无关紧要，而它的显示仅取决于原始变量的内容，如果它为空，则弹出窗口应该可以工作

编辑:

原点显示在 html 页面上。

    <div align="left">Please click on the<strong> Product Code</strong>, to use it within the <div class="style1" id="origin"><%= (origin) %> program. </div></div>

Answer 1

.value() 中的语法错误

应该是

var origin = document.getElementById('origin').value;

代替

var origin = document.getElementById('origin').value();