Use JavaScript implementation to disable all text boxes on a Web page, Drop-down menus, multiline text fields

  This article mainly introduces the use of JavaScript implementation to disable all text boxes on a Web page, Drop-down menu, multiline text fields. Need friends can come to the reference, I hope to help you.

The principle is to loop through the controls on the Web page, and then set the Disabled property to true.   Code as follows:   code is as follows: <script type= "Text/javascript" >     var nodelist = Document.getelementsbytagnam E ("input");     for (var i = 0; i < nodelist.length i++) {        nodelist[i].disabled = true; &nbs P  }     nodelist = document.getElementsByTagName ("select");     for (var i = 0; i < nodelist.length i++) {        nodelist[i].disabled = true; &nbs P  }     nodelist = document.getElementsByTagName ("textarea");     for (var i = 0; i < nodelist.length i++) {        nodelist[i].disabled = true; &nbs P  } </script>   The following are the types of controls:   via Document.getelementsbyname ("controlname") [0]. Type.tolocalelowercase () can be obtained.   Depending on the control, there are several types: "Text" "TextArea" "Select-one" "Select-multiple" "Radio" "checkbox"