javascript - function not working in jsp page? -

- 

<script> function keepcount() {      var x=0;     var count=0;     var x;             for(x=0; x<document.questiongenerate.elements["questions"].length; x++){              if(document.questiongenerate.elements["questions"][x].checked==true || document.questiongenerate.elements["option"][x].checked==true || document.questiongenerate.elements["description"][x].checked==true || document.questiongenerate.elements["fillups"][x].checked==true){                     count= count+1;                    document.getelementsbyname("t1")[0].value=count;                     }                 else                     {                       document.getelementsbyname("t1")[0].value=count;                       //var vn=$('#t1').val();                    // alert(vn);                      //alert(vn);                       //alert("value is"+count);                     }             }             // var cc = document.getelementsbyname("t1")[0].value;              var vn=$('#t1').val();             alert(vn);              if(vn==0){                 alert("you must choose @ least 1");                return false;             }         }     </script>  <form action="selectedquestions.jsp" method="post" name="questiongenerate">      <input type="text" name="t1" id="t1" value=""> <input type="submit" id="fi" name="s" value="finish" onclick="return keepcount();"> </form>

i use above code checking how many check box checked in form form having many check box. , if no check box selected means shows message , submit form loop working , textbox value after loop bellow code doesn't work alert() not working

**

var vn=$('#t1').val();                 alert(vn);                  if(vn==0){                     alert("you must choose @ least 1");                    return false;                 }

this code not working why?

**

i change keepcount() function code shown in bellow solve problem

 function keepcount()   {             var check=$("input:checkbox:checked").length;           alert(check);            if(check==0)               {               alert("you must choose @ least 1");               }     return false;    }

Comments

Post a Comment

Popular posts from this blog

matlab - "Contour not rendered for non-finite ZData" -

-
i'm trying plot frequency characteristic equation using ezplot, matlab gives following warning, "contour not rendered non-finite zdata". have used command plot frequency equations warning , plot display empty , not change axis range well. can please help. appreciated. here's code i'm using. % transfer matrix case-i, thin rotor clear all; clc; ei = 1626; l = 0.15; m = 0.44108; = 2.178*10^-4; i_p = 2.205*10^-5; itr = 0.24; i_pr = 0.479; syms p n; f = [1 l*1i l^2/(2*ei)*1i l^3/(6*ei); 0 1 l/ei -l^2/(2*ei)*1i; 0 0 1 -l*1i; 0 0 0 l]; p = [ 1 0 0 0; 0 1 0 0; 0 -it*p^2+i_p*n*p 1 0; -m*p^2 0 0 1]; p_r = [1 0 0 0; 0 1 0 0; 0 -itr*p^2+i_pr*n*p 1 0; -m*p^2 0 0 1]; = f*p*f*p*f*p*f; b = p_r*f*p*f*p*f; r = a(1,2)/a(1,4); a12_p = 0; a22_p = a(2,2)-r*a(2,4); a32_p = a(3,2)-r*a(3,4); a42_p = a(4,2)-r*a(4,4); ap(2,2) = a22_p; ap(3,2) = a32_p; ap(4,2) = a42_p; ap(4,4) = 1; c = b*ap; m = [c(3,2) c(3,4); c(4,2) c(4,...
Read more

delphi - Indy UDP Read Contents of Adata -

-
i using indy udp server read string of data. however, not know how work adata parameter. can around converting binary using bytetobin function below , convert hex using bintohex1 . feel stupid , works slow. know how can directly results without 2 conversions? thanks!! here codes: procedure tform1.idudpserver1udpread(athread: tidudplistenerthread; const adata: tidbytes; abinding: tidsockethandle); var buf: tidbytes; buffer: string; data_received: string; begin if bytestostring(adata) <> 'hello' begin buffer := hextostring('00'); setlength(buf, length(buffer)); copytidstring(buffer, buf, 0); abinding.sendto(abinding.peerip, abinding.peerport, buf); data_received := bintohex1(bytetobin(adata[1]) + bytetobin(adata[2]) + bytetobin(adata[3]) + bytetobin(adata[4]) + bytetobin(adata[5]) + bytetobin(adata[6]) + bytetobin(adata[7]) + bytetobin(adata[8]) + bytetobin(adata[9]) + bytetobin(adata[10]) + bytetobin(adata[11...
Read more

javascript - Any ideas when Firefox is likely to implement lengthAdjust and textLength? -

-
any ideas when firefox implement lengthadjust andtextlength?..... working svg application. lengthadjust , textlength working fine in chrome not working in fire fox . <svg viewbox = "0 0 500 300" version = "1.1"> <defs> <path id="s3" d="m 10,90 q 100,15 200,70" /> </defs> <g> <text font-size = "20"> <textpath xlink:href="#s3" textlength="205"> short text</textpath> </text> <use xlink:href="#s3" fill="none" stroke="black" stroke-width="1"/> </g> </svg> this implemented in firefox text elements (not textpath or tspan) in case that's ok though can move attribute text element. <svg viewbox = "0 0 500 300" version = "1.1"> <defs> ...
Read more