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floydyxc 2002-07-11
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多谢
希默软件 2002-07-09
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<input type=file id=myImg>
<input type=button value=check onclick="var aa=myImg.value.split('.');if(aa[aa.length-1]=='gif'||aa[aa.length-1]=='jpg'){alert('*.jpg or *.gif')}else{alert('Not *.jpg or *.gif')};">
<input type=button value=check onclick="var aa=myImg.value.split('.');if(aa[aa.length-1]=='gif'||aa[aa.length-1]=='jpg'){alert('*.jpg or *.gif')}else{alert('Not *.jpg or *.gif')};">
qiushuiwuhen 2002-07-09
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<input id=t type="file">
<script>
t.focus()
new ActiveXObject("wscript.shell").sendKeys(".gif")
</script>
<script>
t.focus()
new ActiveXObject("wscript.shell").sendKeys(".gif")
</script>
qiushuiwuhen 2002-07-09
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<input id=t type="file">
<script>
t.focus()
new ActiveXObject("wscript.shell").sendKeys(".gif")
</script>
<script>
t.focus()
new ActiveXObject("wscript.shell").sendKeys(".gif")
</script>
lanbor 2002-07-08
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<html>
<head>
<script language=javascript>
function checkImage(sId)
{
if(( document.all[sId].value.indexOf(".gif") == -1) && (document.all[sId].value.indexOf(".jpg") == -1)) {
alert("请选择gif或jpg的图象文件");
event.returnValue = false;
}
}
</script>
</head>
<body>
<form action='dddd.asp' onsubmit="checkImage('myImg')">
<input type=file id=myImg>
<input type=submit name=submit value=submit>
</form>
</body>
</html>
<head>
<script language=javascript>
function checkImage(sId)
{
if(( document.all[sId].value.indexOf(".gif") == -1) && (document.all[sId].value.indexOf(".jpg") == -1)) {
alert("请选择gif或jpg的图象文件");
event.returnValue = false;
}
}
</script>
</head>
<body>
<form action='dddd.asp' onsubmit="checkImage('myImg')">
<input type=file id=myImg>
<input type=submit name=submit value=submit>
</form>
</body>
</html>
saucer 2002-07-08
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you cannot do that in all major browsers
