�|�页表单相关�Ҏ(gu��)��整理

wjywilliam — Sun, 19 Nov 2006 12:43:00 GMT

�|�页表单相关�Ҏ(gu��)��整理 (转蝲�?.....忘记了，谢谢原作�?

只能是一些限定的东西

�q�行代码�?br />ENTER键可以让光标�U�d��下一个输入框 <input onkeydown="if(event.keyCode==13)event.keyCode=9" > <br> 只能是中�?lt;input onkeyup="value=value.replace(/[ -~]/g,'')" onkeydown="if(event.keyCode==13)event.keyCode=9"> <br> 屏蔽输入�?lt;input style="ime-mode:disabled" onkeydown="if(event.keyCode==13)event.keyCode=9"> <br> 只能输入英文和数�?lt;input onkeyup="value=value.replace(/[\W]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))" onkeydown="if(event.keyCode==13)event.keyCode=9"> <br> 只能是数�?lt;input onkeyup="value=value.replace(/[^\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"><br> 只能昄��Q�不能修�?lt;input readonly value="只能昄��Q�不能修�?>
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只能是数字，判断按键的倹{�?/strong>

�q�行代码�?br /><script language=javascript> function onlyNum() { if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105)||(event.keyCode==8))) event.returnValue=false; } </script> <input onkeydown="onlyNum();">
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附：获取键盘的KeyCode

�q�行代码�?br /><html> <head> <script language="javascript"> ns4 = (document.layers) ? true : false; ie4 = (document.all) ? true : false; function keyDown(e){ if(ns4){ var nkey=e.which; var iekey='现在是ns��览�?; var realkey=String.fromCharCode(e.which); } if(ie4){ var iekey=event.keyCode; var nkey='现在是ie��览�?; var realkey=String.fromCharCode(event.keyCode); if(event.keyCode==32){realkey='\' �I�格\''} if(event.keyCode==13){realkey='\' 回�R\''} if(event.keyCode==27){realkey='\' Esc\''} if(event.keyCode==16){realkey='\' Shift\''} if(event.keyCode==17){realkey='\' Ctrl\''} if(event.keyCode==18){realkey='\' Alt\''} } alert('ns��览器中键�?'+nkey+'\n'+'ie��览器中键�?'+iekey+'\n'+'实际键�ؓ'+realkey); } document.onkeydown = keyDown; if(ns4){ document.captureEvents(Event.KEYDOWN);} </script> </head> <body> //Javascript Document. <hr> <center> <h3>��h��L��一个键。。。�?lt;/h3> </center> </body> </html>
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限制�|�页用键�?/strong>

�q�行代码�?br /><body onkeydown="alert('��用');return false;"> 限制键盘的某个键�Q�body onkeydown="if(event.keyCode==num){alert('��用');return false;}
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再加个找按键的�?/strong>

�q�行代码�?br /><script> function show(){ alert("ASCII代码是："+event.keyCode); } </script> <body onkeydown="show()">
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只能是IP地址

�q�行代码�?br /><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <meta name="GENERATOR" content="Microsoft FrontPage 4.0"> <meta name="ProgId" content="FrontPage.Editor.Document"> <style> .a3{width:30;border:0;text-align:center} </style> <script> function mask(obj){ obj.value=obj.value.replace(/[^\d]/g,'') key1=event.keyCode if (key1==37 || key1==39) { obj.blur(); nextip=parseInt(obj.name.substr(2,1)) nextip=key1==37?nextip-1:nextip+1; nextip=nextip>=5?1:nextip nextip=nextip<=0?4:nextip eval("ip"+nextip+".focus()") } if(obj.value.length>=3) if(parseInt(obj.value)>=256 || parseInt(obj.value)<=0) { alert(parseInt(obj.value)+"IP地址错误�Q?) obj.value="" obj.focus() return false; } else { obj.blur(); nextip=parseInt(obj.name.substr(2,1))+1 nextip=nextip>=5?1:nextip nextip=nextip<=0?4:nextip eval("ip"+nextip+".focus()") } } function mask_c(obj) { clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,'')) } </script> <title>IP地址输入</title> </head> <body>IP地址输入 <div style="border-width:1;border-color:balck;border-style:solid;width:165;font-size:9pt"> <input type=text name=ip1 maxlength=3 class=a3 onkeyup="mask(this)" onbeforepaste=mask_c()>. <input type=text name=ip2 maxlength=3 class=a3 onkeyup="mask(this)" onbeforepaste=mask_c()>. <input type=text name=ip3 maxlength=3 class=a3 onkeyup="mask(this)" onbeforepaste=mask_c()>. <input type=text name=ip4 maxlength=3 class=a3 onkeyup="mask(this)" onbeforepaste=mask_c()> </div> </body> </html>
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�?default#savehistory防止后退清空text文本框：

�q�行代码�?br /><HTML> <HEAD> <META NAME="save" CONTENT="history"> <STYLE> .saveHistory {behavior:url(#default#savehistory);} </STYLE> </HEAD> <BODY> <INPUT class=saveHistory type=text id=oPersistInput> <input type=button onclick='javascript:location. value='点击�q�入,再按后退键试试？'> </BODY> </HTML>
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TEXTAREA自适应文字行数的多��?/strong>

�q�行代码�?br /><textarea rows=1 name=s1 cols=27 onpropertychange="this.style.posHeight=this.scrollHeight">
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上传预览囄��

�q�行代码�?br /><input type=file name=file><input type=button onclick=pic.src=file.value value=预览囄��> <input type=button onclick=alert(file.value) value=囄��地址> <input type=button onclick="file.outerHTML=file.outerHTML.replace(/value=\w/g,'')" value="清除file里字">
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��L��下拉选项的边�?/strong>

�q�行代码�?br /><div style="position: absolute; left: 10px; top: 10px; width: 115px; height: 20px; clip:rect(2 114 20 2);"> <select> <option >cnpeople</option> <option >cnrose</option> <option >cnbruce</option> </select> </font> </div>
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下拉列表打开�H�口

�q�行代码�?br /><select onChange="if(this.selectedIndex && this.selectedIndex!=0){window.open(this.value);}this.selectedIndex=0;"> <option selected>更多链接…�?lt;/option> <option value="http://www.cnbruce.com">cnbruce</option> <option value="http://daonet.myrice.com/old/">daonet</option> <option value="http://www.blueidea.com">blue!dea </select>
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通过下拉菜单传递蟩�?触发submit)

�q�行代码�?br /><form action="showlog.asp?" > <select name="cat_id" onpropertychange="form.submit();"> <option value="">==请选择==</option> <option value="11">11</option> <option value="22">22</option> </select> </form>
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TAB键在文本域中的体�?/strong>

�q�行代码�?br /><script> function editTab() { var code, sel, tmp, r var tabs="" event.returnValue = false sel =event.srcElement.document.selection.createRange() r = event.srcElement.createTextRange() switch (event.keyCode) { case (8) : if (!(sel.getClientRects().length > 1)) { event.returnValue = true return } code = sel.text tmp = sel.duplicate() tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top) sel.setEndPoint("startToStart", tmp) sel.text = sel.text.replace(/^\t/gm, "") code = code.replace(/^\t/gm, "").replace(/\r\n/g, "\r") r.findText(code) r.select() break case (9) : if (sel.getClientRects().length > 1) { code = sel.text tmp = sel.duplicate() tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top) sel.setEndPoint("startToStart", tmp) sel.text = "\t"+sel.text.replace(/\r\n/g, "\r\t") code = code.replace(/\r\n/g, "\r\t") r.findText(code) r.select() } else { sel.text = "\t" sel.select() } break case (13) : tmp = sel.duplicate() tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top) tmp.setEndPoint("endToEnd", sel) for (var i=0; tmp.text.match(/^[\t]+/g) && i<tmp.text.match(/^[\t]+/g)[0].length; i++) tabs += "\t" sel.text = "\r\n"+tabs sel.select() break default : event.returnValue = true break } } </script> <textarea cols=75 rows=20 onkeydown="editTab()"> <script> alert("ok") </script>
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文本框的�?下拉

�q�行代码�?br /><form name="cnbruce"> <textarea name="com"> 向下向上
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一个复选框�Q�点��M��后一�l�复选框全部都选上

�q�行代码�?br /><input type="checkbox" name="checkA" onpropertychange="for(i=0;i<A.children.length;i++){A.children[i].checked=this.checked}">a <br> <span id="A"> <input type="checkbox" name="A1"> <input type="checkbox" name="A2"> <input type="checkbox" name="A3"> </span>
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Debug Textarea�Q�在�U�写 js 脚本的时候，用来��x��查错的东西！

�q�行代码�?br /><HTML> <HEAD> <TITLE>Debug Textarea</TITLE> <meta http-equiv='Content-Type' content='text/html; charset=gb2312'> </HEAD> <style> * { font-size: 12px } body { margin: 10px; padding: 0px } table.list{ cursor: default; border:1px solid #cccccc background-color: #cccccc; border-collapse: collapse; border-Color: #cccccc; } </style> <script language="javascript"> // Coded by windy_sk <windy_sk@126.com> 20040205 function reportError(msg,url,line) { var str = "You have found an error as below: \n\n"; str += "Err: " + msg + " on line: " + line; alert(str); return true; } window.onerror = reportError; document.onkeydown = function() { if(event.ctrlKey){ switch(event.keyCode) { case 82: //r runcode(); break; case 83: //s savecode(); break; case 71: //g goto(prompt('Please input the line number', '1')); break; case 65: //a document.execCommand("SelectAll"); break; case 67: //c document.execCommand("Copy"); break; case 88: //x document.execCommand("Cut"); break; case 86: //v document.execCommand("Paste"); break; case 90: //z document.execCommand("Undo"); break; case 89: //y document.execCommand("Redo"); break; default: break; } event.keyCode = 0; event.returnValue = false; } return; } function show_ln(){ var txt_ln = document.getElementById('txt_ln'); var txt_main = document.getElementById('txt_main'); txt_ln.scrollTop = txt_main.scrollTop; while(txt_ln.scrollTop != txt_main.scrollTop) { txt_ln.value += (i++) + '\n'; txt_ln.scrollTop = txt_main.scrollTop; } return; } function editTab(){ var code, sel, tmp, r var tabs='' event.returnValue = false sel =event.srcElement.document.selection.createRange() r = event.srcElement.createTextRange() switch (event.keyCode){ case (8) : if (!(sel.getClientRects().length > 1)){ event.returnValue = true return } code = sel.text tmp = sel.duplicate() tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top) // 出错��验代码~~~~~~ if(sel.parentElement() != tmp.parentElement()) return; sel.setEndPoint('startToStart', tmp) sel.text = sel.text.replace(/^\t/gm, '') code = code.replace(/^\t/gm, '').replace(/\r\n/g, '\r') r.findText(code) r.select() break case (9) : if (sel.getClientRects().length > 1){ code = sel.text tmp = sel.duplicate() tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top) // 出错��验代码~~~~~~ if(sel.parentElement() != tmp.parentElement()) return; sel.setEndPoint('startToStart', tmp) sel.text = '\t'+sel.text.replace(/\r\n/g, '\r\t') code = code.replace(/\r\n/g, '\r\t') r.findText(code) r.select() }else{ sel.text = '\t' sel.select() } break case (13) : tmp = sel.duplicate() tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top) // 出错��验代码~~~~~~ if(sel.parentElement() != tmp.parentElement()) return; tmp.setEndPoint('endToEnd', sel) for (var i=0; tmp.text.match(/^[\t]+/g) && i<tmp.text.match(/^[\t]+/g)[0].length; i++) tabs += '\t' sel.text = '\r\n'+tabs sel.select() break default : event.returnValue = true break; } return; } function runcode() { var str = document.getElementById("txt_main").value; var code_win = window.open('about:blank'); code_win.document.open(); code_win.document.writeln("<script>"); code_win.document.writeln("function reportError(msg,url,line){\nline-=14;\nvar str='You have found an error as below: \\n\\n';\nstr+='Err: '+msg+' on line: '+(line);\nalert(str);\nopener.goto(line);\nopener.focus();\nwindow.onerror=null;\nsetTimeout('self.close()',10);\nreturn true;\n}"); code_win.document.writeln("window.onerror = reportError;"); code_win.document.writeln("<\/script>"); code_win.document.writeln(str); code_win.document.close(); return; } function savecode() { var str = document.getElementById("txt_main").value; var code_win = window.open('about:blank','_blank','top=10000'); code_win.document.open(); code_win.document.writeln(str); code_win.document.close(); code_win.document.execCommand('saveas','','code.html'); code_win.close(); return; } function goto(ln) { if(!/^\d+$/.test(ln)) return; var obj = document.getElementById("txt_main"); var rng = obj.createTextRange(); var arr = obj.value.replace(/\r/, "").split(/\n/); if(ln>arr.length) ln = arr.length; var str_tmp = ""; for(var i=0; i<ln-1; i++) { str_tmp += arr[i]; } rng.moveStart('character',str_tmp.length+1); str_tmp = ""; for(i=ln; i<arr.length; i++) { str_tmp += arr[i]; } rng.moveEnd('character',-str_tmp.length); rng.select(); return; } window.onload = function() {document.getElementById("txt_main").value = "<script>\nalert(')\n<\/script>";} </script> <BODY> <table width='600' class='list' border='1' bgcolor='#eeeeee' bordercolorlight='#000000' bordercolordark='#FFFFFF' cellpadding='0' cellspacing='0'> <tr bgcolor='#cccccc'> <td colspan='2' height='20' align='center'><b>Debug Textarea</b></td> </tr> <tr> <td colspan='2'> <table width='95%' border='0' align='center' > <tr> <td align='center'><br /> <textarea id='txt_ln' name='content' rows='10' style='width:40px;overflow:hidden;height:200px;border-right:0px;text-align:right;line-height:14px' onselectstart='this.nextSibling.focus();return false' readonly>

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wjywilliam 2006-11-19 20:43 发表评论

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常用�|�页javascript�Ҏ(gu��)��

�|�页表单相关�Ҏ(gu��)��整理