javascript部分代码

   //检查一个textbox中字符输入的个数
        function check() {
            var txt1Count = document.getElementById("txt1");
            if (txt1Count.value.length<5) {
                alert("字符串长度过短，只有"+txt1Count.value.length+"个?，还需"+(5-txt1Count.value.length)+"个?" );
            }
        }

       //将form中的textbox内容转换为大写
        function Upper() {
            var form = window.document.forms[0];
            for (var i = 0; i < form.elements.length; i++) {
                var elem = form.elements[i];
                if (elem) {
                    if (elem.type=="text") {
                        if (elem.value!="") {
                            elem.value = elem.value.toUpperCase();
                        }
                    }
                }
            }
        }

        //清空form中textbox的内容
        function Clear() {
            var form = window.document.forms[0];
            for (var i = 0; i < form.elements.length; i++) {
                var elem = form.elements[i];
                if (elem) {
                    if (elem.type=="text") {
                        elem.value = "";
                    }
                }
            }
        }

      //关闭窗体
        function CloseWin() {
            window.close();
        }

//分¤?时º¡À问¨º候¨°，ê?加¨®在¨²body之?内¨²。¡ê
<script language="javascript">
    now = new Date(), hour = now.getHours();
    if (hour<6) {document.write("凌¢¨¨晨?好?")
    } else if (hour<9) {
        document.write("早?上¦?好?！ê?")
    } else if (hour<12) {
    document.write("上¦?午?好?");
} else if (hour<14) {
document.write("中D午?好?");
} else if (hour<17) {
document.write("下?午?好?");
} else if (hour<19) {
document.write("傍ã?晚ª¨ª好?");
} else if (hour<22) {
document.write("晚ª¨ª上¦?好?");
} else {
document.write("夜°1里¤?好?");
}
</script>




        //页面全屏显示
        function FullScreen() {
            window.open(document.location,'big','FullScreen=yes');
        }