我与JS发生冲突。我为网站上的select元素编写了两个脚本。一个用于提交它而没有提交按钮，另一个用于自定义样式选择。以下是其中两个：
<script type="text/javascript"><!--
var dropdown = document.getElementById("stallions");
function onStallion() {
if ( dropdown.options[dropdown.selectedIndex].value != null ) {
location.href = dropdown.options[dropdown.selectedIndex].value;
}
}
dropdown.onchange = onStallion;
--></script>
// Jquery plugin for styling selectboxes from DressCode.
$(document).ready(function(){
// first locate all of the select tags on the page and hide them
$("select#stallions").css('display','none');
//now, for each select box, run this function
$("select#stallions").each(function(){
var curSel = $(this);
// get the CSS width from the original select box
var gddWidth = $(curSel).css('width');
var gddWidthL = gddWidth.slice(0,-2);
var gddWidth2 = gddWidthL - 28;
var gddWidth3 = gddWidthL - 16;
// build the new div structure
var gddTop = '<div style="width:' + gddWidthL + 'px" class="selectME" tabindex="0"><div class="cornerstop"><div><div></div></div></div><div class="middle"><div><div><div>';
//get the default selected option
var whatSelected = $(curSel).children('option:selected').text();
//write the default
var gddFirst = '<div class="first"><span class="selectME gselected" style="width:'+ gddWidth2 + 'px;">'+ whatSelected +'</span><span id="arrowImg"></span><div class="clears"></div></div><ul class="selectME">';
// create a new array of div options from the original's options
var addItems = new Array();
$(curSel).children('option').each( function() {
var text = $(this).text();
var selVal = $(this).attr('value');
var before = '<li style="width:' + gddWidthL + 'px;"><a href="#" rel="' + selVal + '" tabindex="0" style="width:' + gddWidth3 + 'px;">';
var after = '</a></li>';
addItems.push(before + text + after);
});
//hide the default from the list of options
var removeFirst = addItems.shift();
// create the end of the div selectbox and close everything off
var gddBottom ='</ul></div></div></div></div><div class="cornersbottom"><div><div></div></div></div></div>'
//write everything after each selectbox
var GDD = gddTop + gddFirst + addItems.join('') + gddBottom;
$(curSel).after(GDD);
//this var selects the div select box directly after each of the origials
var nGDD = $(curSel).next('div.selectME');
$(nGDD).find('li:first').addClass("first");
$(nGDD).find('li:last').addClass('last');
//handle the on click functions - push results back to old text box
$(nGDD).click( function(e) {
var myTarA = $(e.target);
var myTarT = $(e.target).text();
var myTar = $(e.target);
//if closed, then open
if( $(nGDD).find('li').css('display') == 'none')
{
//this next line closes any other selectboxes that might be open
$('div.selectME').find('li').css('display','none');
$(nGDD).find('li').css('display','block');
//if user clicks off of the div select box, then shut the whole thing down
$(document.window || 'body').click( function(f) {
var myTar2 = $(f.target);
if (myTar2 !== nGDD) {$(nGDD).find('li').css('display','none');}
});
return false;
}
else
{
if (myTarA == null){
$(nGDD).find('li').css('display','none');
return false;
}
else {
//set the value of the old select box
$(curSel).val(myTarA);
//set the text of the new one
$(nGDD).find('span.gselected').text(myTarT);
$(nGDD).find('li').css('display','none');
return false;
}
}
//handle the tab index functions
}).focus( function(e) {
$(nGDD).find('li:first').addClass('currentDD');
$(nGDD).find('li:last').addClass('lastDD');
function checkKey(e){
//on keypress handle functions
function moveDown() {
var current = $(nGDD).find('.currentDD:first');
var next = $(nGDD).find('.currentDD').next();
if ($(current).is('.lastDD')){
return false;
} else {
$(next).addClass('currentDD');
$(current).removeClass('currentDD');
}
}
function moveUp() {
var current = $(nGDD).find('.currentDD:first');
var prev = $(nGDD).find('.currentDD').prev();
if ($(current).is('.first')){
return false;
} else {
$(prev).addClass('currentDD');
$(current).removeClass('currentDD');
}
}
var curText = $(nGDD).find('.currentDD:first').text();
var curVal = $(nGDD).find('.currentDD:first a').attr('rel');
switch (e.keyCode) {
case 40:
$(curSel).val(curVal);
$(nGDD).find('span.gselected').text(curText);
moveDown();
return false;
break;
case 38:
$(curSel).val(curVal);
$(nGDD).find('span.gselected').text(curText);
moveUp();
return false;
break;
case 13:
$(nGDD).find('li').css('display','none');
}
}
$(document).keydown(checkKey);
}).blur( function() {
$(document).unbind('keydown');
});
});
});
第一个嵌入在页面的php文件中，第二个从外部js文件中拉入。我测试了它，我知道它们两者之间存在冲突。如果我使用第二个脚本，则提交的第一个脚本不起作用。如果我删除第二个脚本，它可以正常工作。
我很乐意在导致错误的原因以及如何解决错误方面获得任何帮助。谢谢你的帮助！
答案 0 :(得分：2)
问题在于DressDown代码与下拉列表的交互方式。
你有这一行（第69行）：
//set the value of the old select box
$(curSel).val(myTarA);
它不会触发列表的更改。您可以在该行之后立即添加location.href，这应该可以执行您想要的操作：
....
//set the value of the old select box
$(curSel).val(myTarA);
location.href = myTarA;
//set the text of the new one
....