form定义如下:
<form >
<input type ="button" onclick ="acurl()" value ="acurl" />
<input type="text" value ="" />
</form>
判断当form下input的值全部为空时,页面跳转
js如下:
function acurl() {
var inputs = document.getElementsByTagName("input");
var bBool;
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].value == "") {
bBool = true;
}
else {
bBool = false;
return false;
}
}
if (bBool) {
form1.submit();
}
}
判断不为空时页面跳转
function acurl() {
if (document.getElementById("name").value != "") {
form1.submit();
}
else {
alert("sb没值");
}
}