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<script>
function createSelect()
{
var mySelect = document.createElement("select");
mySelect.id = "mySelect";
mySelect.onchange=function(){document.getElementById("blood").value=this.value}
document.body.appendChild(mySelect);
addOption();
}
function addOption()
{
var obj=document.getElementById('mySelect');
obj.options[obj.options.length] = new Option("-请选择血型-","-1");
obj.options[obj.options.length] = new Option("B型","B型");
obj.options[obj.options.length] = new Option("O型","O型");
obj.options[obj.options.length] = new Option("AB型","AB型");
}
</script>
血型:<input type="text" id="blood" name="blood" value="A型" onfocus="createSelect()">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="../jquery/jquery-1.5.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
//纯js版
window.onload = function () {
var selBloodType = document.getElementById("selBloodType"); //$("#selBloodType");
var txtBloodType = document.getElementById("txtBloodType"); //$("#txtBloodType");
//显示血型下拉框
txtBloodType.onclick = function () {
selBloodType.style.display = "";
}
//血型下拉框选择项改变时
selBloodType.onchange = function () {
txtBloodType.value = selBloodType.options[selBloodType.selectedIndex].value; ;
selBloodType.style.display = "none";
}
}
</script>
</head>
<body>
<div>
<input type="text" id="txtBloodType" style="width: 100px" />
<div>
<!-- 这里的select 要使用multiple模式 否则无法自动展开-->
<select id="selBloodType" style="display: none; width: 100px" multiple="multiple" size="4">
<option value="A">A</option>
<option value="B">B</option>
<option value="AV">AV</option>
<option value="H1">H1</option>
<option value="H2">H2</option>
</select>
</div>
</div>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="../jquery/jquery-1.5.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
var selBloodType = $("#selBloodType");
var txtBloodType = $("#txtBloodType");
//显示血型下拉框
txtBloodType.click(function () {
selBloodType.show();
});
//血型下拉框选择项改变时
selBloodType.change(function () {
txtBloodType.val($(this).val());
selBloodType.hide();
});
});
</script>
</head>
<body>
<div>
<input type="text" id="txtBloodType" style="width: 100px" />
<div>
<!-- 这里的select 要使用multiple模式 否则无法自动展开-->
<select id="selBloodType" style="display: none; width: 100px" multiple="multiple" size="4">
<option value="A">A</option>
<option value="B">B</option>
<option value="AV">AV</option>
<option value="H1">H1</option>
<option value="H2">H2</option>
</select>
</div>
</div>
</body>
</html>