JBOSS SEAM and JavaScript
andipesel88 Feb 19, 2007 7:57 AMHello to everyone!
I'm a bloody Jboss novice - the only thing already now are Java itself and JSP's.
Right now I need to learn JBOSS Seam in connection with hibernate for a school project.
The installation and development of my project is fine, everything works.
But my problem is the following:
I need a javascript on my site. I know that there is the possibility of using AJAX and JSF components, but I've found nothing that matches my need.
I need a counter which counts from e.g. 160 down to 0 in an inputText depending on how many characters the users has written in the textarea.
So I thought that it might work if I put the javascript itself hardcoded onto my site - but it doesn't. There is no error message or anything else that is shown. The JavaSCript itself works fine in a normal HTML site.
So here is my code:
I've a template.xhtml where i puttet the javascript between the header tags:
... <script type="text/javascript"> <![CDATA[ function pruef (chars) { var anz=0, len=0,s; var msg = document.predefines.predefines:nachr.value; if (!chars) { chars = 151; } for (var i=0; i < msg.length; i++) { s = msg.charAt(i); if (s=='?' || s=='~' || s=='^' || s=='\\' || s=='{' || s=='}' || s=='[' || s==']' || s=='|') { if (anz>(chars-2)) { break }; anz+=2; } else if (s=="\r") { } else { if (anz>(chars-1)) { break }; anz++; } len = i+1; } if (msg.length> len) { document.predefines.predefines:nachr.value = msg.substring(0,len); } document.predefines.predefines:num.value = chars-anz; if (navigator.appName =="Netscape" && parseInt(navigator.appVersion) <= 4){ document.captureEvents(Event.KEYPRESS); document.predefines.predefines:nachr.onkeypress = pruef; } } ]]> </script> ...
and then i just called the function on the site i need:
... <h:form id="predefines"> ... <h:panelGroup> <h:inputTextarea id="nachr" onkeyup="pruef(160);" cols="50" rows="5"/> <h:inputText value="160" id="num" onfocus="this.blur();"/> </h:panelGroup> ... </h:form> ...
I hope you can help me!
andy