<!--
//
非空验证
function
requiredField(myId,errorMessage)
...
{ if(document.getElementById(myId).value == "") ...{ window.alert(errorMessage); document.getElementById(myId).focus(); return false; } return true;}
//
dropDownList myName值不能为myValue
function
dropCant(myId,myValue,errorMessage)
...
{ if(document.getElementById(myId).value == myValue) ...{ window.alert(errorMessage); document.getElementById(myId).focus(); return false; } return true;}
//
Email格式验证
function
validEmail(myId,errorMessage)
...
{ var email = /^[_a-zA-Z0-9+.]+@([_a-zA-Z0-9]+.)+[a-zA-Z0-9]...{2,3}$/; if(email.test(document.getElementById(myId).value)) ...{ return true; } else ...{ window.alert(errorMessage); document.getElementById(myId).focus(); return false; }}
//
两值是否相同(常用于密码比较)
function
compareValid(myId1,myId2,errorMessage)
...
{ if(document.getElementById(myId1).value == document.getElementById(myId2).value) ...{ return true; } else ...{ window.alert(errorMessage); document.getElementById(myId1).focus(); return false; }}
//
字段长度验证(x位至y位)
function
validLength(myId,x,y,errorMessage)
...
{ if(document.getElementById(myId).value.length < x || document.getElementById(myId).value.length > y) ...{ window.alert(errorMessage); document.getElementById(myId).focus(); return false; } return true;}
-->
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