这个js防止重复提交为何不对
<!DOCTYPEHTMLPUBLIC"-//W3C//DTDHTML4.0Transitional//EN"><HTML><HEAD>...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> New Document </TITLE><script language="JavaScript"> var checkSubmitFlag=true; function checkSubmit() { if(true==checkSubmitFlag) { //document.theForm.btnSubmit.disabled = true; document.theForm.submit(); open("logo.html"); checkSubmitFlag = false; } else { alert("你已经提交了表单，请勿重复提交。"); } }</script></HEAD><BODY><form action="#" name="theForm" method="post" ><input type="button" onclick="checkSubmit()" value="Submit"/></form></BODY></HTML>
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<script language="JavaScript">
var checkSubmitFlag=true;
function checkSubmit(){
if(checkSubmitFlag){
checkSubmitFlag = false;
//document.theForm.submit();
//window.open("logo.html");
}else{
alert("你已经提交了表单，请勿重复提交。");
return false;
}
}
</script>
<form action="#" name="theForm" method="post" >
<input type="button" onclick="return checkSubmit()" value="Submit"/>
</form>
var checkSubmitFlag=true;
function checkSubmit(){
if(checkSubmitFlag){
checkSubmitFlag = false;
//document.theForm.submit();
//window.open("logo.html");
}else{
alert("你已经提交了表单，请勿重复提交。");
return false;
}
}
</script>
<form action="#" name="theForm" method="post" >
<input type="button" onclick="return checkSubmit()" value="Submit"/>
</form>
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