Re: pass javascript variable to php without submit or reload

If you are trying to collect things like monitor size or other user data you could try putting the JS in the head and then put a <meta refresh> tag with time period of 0. I haven't actually tried this but it might work. -- Mike ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ MICHAEL R. HARVEY <Sculptor> Web Creation - http://vestudiohost.com Internet Business Tools - http://ibiz-tools.com Sculpture, Craft, Jewelry - http://sculpture-by-mrh.com http://jewelry-by-mrh.com http://craft-by-mrh.com New Product Innovations and Development. Ph: 845-279-8295 "Phieu Huynh" <Phil.Huynh@eng.monash.edu.au> wrote in message news:3BEF120B.F6A9089C@eng.monash.edu.au... > > <script language=javascript> > function changebuilding (which) { > sel_var = which.selectedIndex > <? > $sql_query = "select distinct room > from general.room_info > where building='$variable' group by level asc"; > > $sql_result = mysql_query($sql_query) or die (" Can't execute the > query"); > > $i=0; > while ($row = mysql_fetch_array($result_sec_level)) > print ("ar[".$i++."] = \"".$row[0]."\";\n"); > ?> > for (i=0; i < ar.length; i++) { > option = new Option(ar[i]) > document.myform.room.options[i]=option > } > } > </script> > <body> > <form name=myform> > Building : <select name=building onchange=changebuilding(this) > > <option>1</option> > <option>2</option> > <option>3</option> > </select> > Room : <select name=room > > </select> > </form> > </body> > > > I can pass the variable in building to $variable by submit button > but I want to pass the sel_var variable to $variable and dynamic update > the content in room. > > -- > > phil