RE: [PHP-DEV] javascript not working with php

> -----Original Message----- > From: Anil Garg [mailto:anilg@niksun.com] > Sent: 11 June 2002 15:01 > > Hi, > In a form i have two elements: > > I > <input type="text" name="name" size=25 value="test"> > > II > <select name="categories[]" multiple size=10> > <? option value = ...?>.... > <? option value = ....?>.... > > Now i want to show an alert message(using javascript) if the > text field is > empty or no option is selected from categories list. > > For the text field its working fine as below (the javascript > method called > when onsubmit method is called): > > if(theForm.name.value==""){ > alert("You must enter a Title."); > theForm.name.focus(); > return(false); > } > > But for the options list(categories) i have tried my best > but i couldnt get > it work. if (theForm["categories[]"].value==""){ ... no category selected ... } This is standard JavaScript: x["y"] is by definition equivalent to x.y Cheers! Mike --------------------------------------------------------------------- Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning & Information Services, JG125, James Graham Building, Leeds Metropolitan University, Beckett Park, LEEDS, LS6 3QS, United Kingdom Email: m.ford@lmu.ac.uk Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211