下拉选择框onchange触发隐藏输入框
window.οnlοad=function(){
var sel=document.getElementById("sel");
if (sel.value=="隐藏输入框1") {
var sum1=document.getElementById("input1");//隐藏输入框1
sum1.style.display="none";
var sum2=document.getElementById("input2");//显示输入框2
sum2.style.display="block";
var sum3=document.getElementById("input3");//显示输入框3
sum3.style.display="block";
}
}
function sel() {
var sel=document.getElementById("sel");
if (sel.value=="隐藏输入框1") {
var sum1=document.getElementById("input1");//隐藏输入框1
sum1.style.display="none";
var sum2=document.getElementById("input2");//显示输入框2
sum2.style.display="block";
var sum3=document.getElementById("input3");//显示输入框3
sum3.style.display="block";
}
else if (sel.value=="隐藏输入框2") {
var sum1=document.getElementById("input1");//显示输入框1
sum1.style.display="block";
var sum2=document.getElementById("input2");//隐藏输入框2
sum2.style.display="none";
var sum3=document.getElementById("input3");//显示输入框3
sum3.style.display="block";
}
else{
var sum1=document.getElementById("input1");//显示输入框1
sum1.style.display="block";
var sum2=document.getElementById("input2");//显示输入框2
sum2.style.display="block";
var sum3=document.getElementById("input3");//隐藏输入框3
sum3.style.display="none";
}
}
请选择要隐藏哪个输入框:
隐藏输入框1
隐藏输入框2
隐藏输入框3