xml - How do I read a variable output from an html form and use it in the webpage? -


ok, i've tried work - can't seem see way...

what trying have form ask index, when submit read xml file (bowlist.xml) , give me data matching index.

here entire code:

    <!doctype html> <html> <body>  <form action=""> bowl #: <input type="text" name="bowlidx" value="" /><br /> <input type="submit" value="submit"  /> </form>  <script type="text/javascript">  var index = <%=request.querystring(bowlidx)%>  document.write('index ' + index)  if (window.xmlhttprequest)   {// code ie7+, firefox, chrome, opera, safari   xmlhttp=new xmlhttprequest();   } else   {// code ie6, ie5   xmlhttp=new activexobject("microsoft.xmlhttp");   } xmlhttp.open("get","bowlist.xml",false); xmlhttp.send(); xmldoc=xmlhttp.responsexml;   document.write("<table border='1'>"); var x=xmldoc.getelementsbytagname("product"); (i=0;i<x.length;i++)   {      if(x[i].getelementsbytagname("id")[0].childnodes[0].nodevalue != index) continue;         document.write("<tr><td>");         document.write(x[i].getelementsbytagname("id")[0].childnodes[0].nodevalue);         document.write("</td><td>");         document.write(x[i].getelementsbytagname("code")[0].childnodes[0].nodevalue);         document.write("</td><td>");         document.write(x[i].getelementsbytagname("image")[0].childnodes[0].nodevalue);         document.write("</td></tr>");   } document.write("</table>");</script>  </body> </html>

i form, enter , submit index, , nothing happens.

where going wrong on this?

i should add javascript search work if enter existing index in "if(x[i].getelementsbytagname("id")[0].childnodes[0].nodevalue != index)" line.

in case want when page loads (i.e. after click submit button , page reloads), use line of server-side code set variable in javascript, so:

index = <%=request.querystring("bowlidx")%>

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