javaScript 确认验证框

来源:互联网 时间:2017-01-22

javaScript 确认验证框

<script type="text/javaScript"> function deleteitem() { var b = window.confirm("你确认归零吗?"); if (b) { //window.location.href = "#" window.location.reload(); //window.location.href = "${pageContext.request.contextPath}/servlet地址" } } function changeQuantity(input){ var quantity = input.value; var oldvalue = document.getElementById("oldvalue"); if(quantity!=parseInt(quantity) || quantity <0){ alert("请输入正整数!!"); input.value = oldvalue.value; return; } oldvalue.value = input.value; //window.location.href = "${pageContext.request.contextPath}/servlet地址" alert("修改成功"); }</script></head><body> <input type="text" value="0" hidden="hidden" id="oldvalue"> <input id="test" type="text" value="0" onchange="changeQuantity(this)"> <a href="javascript:void(0)" onclick="deleteitem()">归零</a></body>

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