var keynum, lines0 = 1, lines1 = 1, lines2 = 1, lines3 = 1, lines4 = 1;

      function limitLines0(obj, a) {


    if (obj.value.length > 140) {
       	obj.value = obj.value.substring(0, 140);
    } 


        if(window.event) {
          keynum = a.keyCode;

        } else if(a.which) {
          keynum = a.which;
        }

        if(keynum == 13) {
          if(lines0 == obj.rows) {
            return false;
          }else{
            lines0++;
          }
        }


      }


      function limitLines1(obj, b) {

    if (obj.value.length > 80) {
       	obj.value = obj.value.substring(0, 80);
    } 


        if(window.event) {
          keynum = b.keyCode;

        } else if(b.which) {
          keynum = b.which;
        }

        if(keynum == 13) {
          if(lines1 == obj.rows) {
            return false;
          }else{
            lines1++;
          }
        }
      }

      function limitLines2(obj, b) {

    if (obj.value.length > 80) {
       	obj.value = obj.value.substring(0, 80);
    } 


        if(window.event) {
          keynum = b.keyCode;

        } else if(b.which) {
          keynum = b.which;
        }

        if(keynum == 13) {
          if(lines2 == obj.rows) {
            return false;
          }else{
            lines2++;
          }
        }
      }

      function limitLines3(obj, b) {

    if (obj.value.length > 80) {
       	obj.value = obj.value.substring(0, 80);
    } 


        if(window.event) {
          keynum = b.keyCode;

        } else if(b.which) {
          keynum = b.which;
        }

        if(keynum == 13) {
          if(lines3 == obj.rows) {
            return false;
          }else{
            lines3++;
          }
        }
      }

      function limitLines4(obj, b) {

    if (obj.value.length > 80) {
       	obj.value = obj.value.substring(0, 80);
    } 

        if(window.event) {
          keynum = b.keyCode;

        } else if(b.which) {
          keynum = b.which;
        }

        if(keynum == 13) {
          if(lines4 == obj.rows) {
            return false;
          }else{
            lines4++;
          }
        }
      }