IE支持的html元素的disable在netscape4.76中的实现1. 相关的html元素(1) text , edit , password , textarea(2) radio , checkbox(3) select2. IE中的写法(1) document.form_name.text_name.disabled = true;document.form_name.edit_name.disabled = true;document.form_name.password_name.disabled = true;document.form_name.textarea_name.disabled = true;(2) document.form_name.radio_name[i].disabled = true;document.form_name.checkbox_name[i].disabled = true;(3) document.form_name.select_name.disabled = true;3. Netscape4.76中的写法(1) document.form_name.text_name.disabled = true;document.form_name.edit_name.disabled = true;document.form_name.password_name.disabled = true;在相应的text , edit , password , textarea 元素上添加对focus事件处理的方法:onfocus=”disableElements(this)”function disableElements(obj){if(obj.disabled) { obj.blur(); }}(2) document.form_name.radio_name[i].disabled = true;document.form_name.checkbox_name[i].disabled = true;在相应的radio , checkbox元素上添加对mousedown事件处理的方法:onclick=”return disableElements(this)”function disableElements(obj){if(obj.disabled) { obj.checked=false; return false;; }}(3) document.form_name.select_name.disabled = true;在相应的select元素上添加对change事件进行处理的方法:onchange=”disableElements(this)”function disableElements(obj){ if (obj.disabled) { for (var i=0; i<obj.options.length; i++) { obj.options[i].selected = obj.options[i].frozenStatus; (obj.options[i].selected = false;这样写也可以.) } }}最后我附上一个例子,这个例子在IE6.0和Netscape4.76下测试通过!<html><body><form>
Test:<input type="text" name="t1" >
Edit:<input type="edit" name="t2" >
Textarea:<textarea name="t3" ></textarea>
Password: <input type="password" name="t4" >
Radiobutton: <input type="radio" name="t5" >
Checkbox: <input type="checkbox" name="t6" >
Defaul disabled Checkbox: <input type="checkbox" disabled name="t8" >
Select: <select name="t7" ><option> one<option> two<option> three<option> four</select>
<input type="button" value="Enable/Disable" ></form></body></html> <script language="javaScript">function disableText(obj){if(obj.disabled)obj.blur();} function disableEdit(obj){if(obj.disabled)obj.blur(); } function disablePassword(obj){if(obj.disabled)obj.blur();} function disableTextarea(obj){if(obj.disabled)obj.blur();} function disableRadio(obj){ if(obj.disabled) { obj.checked=false; return false; }} function disableCheck(obj){ if(obj.disabled) { obj.checked=false; return false; }} function disableCheck2(obj){ obj.disabled=true; if(obj.disabled) { obj.checked=false; return false; }} function ChangeSelect(obj){ if (obj.disabled) { for (var i=0; i<obj.options.length; i++) { //obj.options[i].selected = obj.options[i].frozenStatus;obj.options[i].selected = false;(这两种写法都是可以的) } } } function change(){document.forms[0].t1.disabled=!document.forms[0].t1.disabled; document.forms[0].t2.disabled=!document.forms[0].t2.disabled;document.forms[0].t3.disabled=!document.forms[0].t3.disabled;document.forms[0].t4.disabled=!document.forms[0].t4.disabled;document.forms[0].t5.disabled=!document.forms[0].t5.disabled;document.forms[0].t6.disabled=!document.forms[0].t6.disabled;document.forms[0].t7.disabled=!document.forms[0].t7.disabled; document.forms[0].t1.value="";document.forms[0].t2.value="";document.forms[0].t3.value="";document.forms[0].t4.value=""; document.forms[0].t5.checked=false;document.forms[0].t6.checked=false;document.forms[0].t7.value="";for (var i=0; i<document.forms[0].t7.options.length; i++) { //document.forms[0].t7.options[i].selected = document.forms[0].t7.options[i].frozenStatus;document.forms[0].t7.options[i].selected = false;}}</script>
IE支持的html元素的disable在netscape4.76中的实现
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