IreneLing Posted September 29, 2011 Share Posted September 29, 2011 Really thanks to freelance84 help for my previous post , and again , I have a small problem . I tried to make a function that , once a textbox is hidden , the value will automatically reset to 0. function resettextbox(id) { var firsthiddenbox = document.getElementById(id); if(firsthiddenbox.style.display = 'none') { firsthiddenbox.value = 0; } <input type="text" id="nameBox" onkeyup="nameCheck('nameBox','FIRST NAME',hiddenBox');resettextbox(hiddenBox)"/> hmm...it not really works of course , is there anything I need to change ? Thanks for every reply . Quote Link to comment Share on other sites More sharing options...
MarPlo Posted September 29, 2011 Share Posted September 29, 2011 Hi, I'm not sure if it works, but try 2 "=" in if() statement, like this: if(firsthiddenbox.style.display == 'none') Quote Link to comment Share on other sites More sharing options...
freelance84 Posted September 29, 2011 Share Posted September 29, 2011 if(x == y) is like saying if x is the same as y if(x = y) is like saying x equals y Also, you could write it into the function too. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <script type="text/javascript"> /*display hidden box if first name exists*/ function nameCheck(id,key,id2){ var nameCheck = document.getElementById(id).value; if(nameCheck.search(key) > -1 ){ document.getElementById(id2).style.display = 'inline'; } else{ document.getElementById(id2).style.display = 'none'; if(document.getElementById(id2).style.display == 'none'){ document.getElementById(id2).value = ''; } } } function alertTextAreaContent(){ var taVal = document.getElementById('hiddenBox').value; alert(taVal); } </script> </head> <body > <input type="text" id="nameBox" onkeyup="nameCheck('nameBox','FIRST NAME','hiddenBox')"/><br/> <textarea id="hiddenBox" style="display:none;"> rty erty rty rtyh</textarea> <input type="button" value="Test textarea content" onclick="alertTextAreaContent();"/> </body> </html> Quote Link to comment Share on other sites More sharing options...
IreneLing Posted October 1, 2011 Author Share Posted October 1, 2011 I'm so sorry for my late response , and thanks to the reply MarPlo and freelance84. The code works very well , really thanks freelance84 , you helped me a lot . Have a nice day . Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.