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ClientScript.RegisterStartupScript(this.GetType(), "onclick", "<script>CheckInput()</script>");
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<script type="text/javascript" language="javascript">
function CheckInput() {
if (document.form1.txt_ReceiptID.value == "") {
alert('±¨Ïúµ¥ºÅ²»ÄÜΪ¿Õ!');
document.form1.txt_ReceiptID.focus();
return false;
}
else {
if(checknumber(document.form1.txt_ReceiptID.value)
{
alert("±¨Ïúµ¥ºÅΪÊý×Ö£¡");
document.form1.txt_ReceiptID.focus();
return false;
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<head runat="server">
<script type='text/javascript' language="javascript">
<!—
//“Ìí¼ÓÄÚÈÝ”
//-->
</script>
</head>
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var myDate = new Date();
myDate.getYear(); //»ñÈ¡µ±Ç°Äê·Ý(2λ)
myDate.getFullYear(); //»ñÈ¡ÍêÕûµÄÄê·Ý(4λ,1970-????)
myDate.getMonth(); //»ñÈ¡µ±Ç°Ô·Ý(0-11,0´ú±í1ÔÂ)
myDate.getDate();   ......