Javascript的表单验证-提交表单

<form><input id="message" name="message" type="text" size="12" onBlur="validate_Length(1,32,this,document.getElementById('message_help'));" /><message_help" class="help"></span><input id="ZipCode" name="phone" type="text" size="5" onBlur="validate_ZipCode(this,document.getElementById('ZipCode_help'));" /><span id="ZipCode_help" class="help"></span><input type="button" value="Order Banner" onClick="placeOrder(this.form);"/></form><script language="javascript" type="text/javascript">//文本长度验证function validate_Length(minLegth,maxlength,inputFiled,helpText){if(inputFiled.value.length<minLegth||inputFiled.value.length>maxlength){if(helpText!=null){helpText.innerHTML="请输入长度为"+minLenght+"到"+maxLength+"的文本";return false;}}else if(helpText!=null){helpText.innerHTML=""return true;}}//邮政编码验证function validate_ZipCode(inputFiled,helpText){if(inputFiled.value.length!=5){if(helpText!=null)helpText.innerHTML="邮政编码长度必须为5位";return false;}else if(isNaN(inputFiled.value)){if(helpText!=null)helpText.innerHTML="邮政编码必须为数字";return false;}else if(helpText!=null){helpText.innerHTML=""return true;}}function placeOrder(form){if(validateNonEmpty(1,32,form["phone"],form["phone_help"])&&validate_ZipCode(form["ZipCode"],form["ZipCode_help"])){form.submit();}else{alert("您填写的表单数据至少有一项不合法");}}</script>