function clickclear(thisfield, defaulttext) {
   if (thisfield.value == defaulttext) {
      thisfield.value = "";
   }
}


function clickrecall(thisfield, defaulttext) {
   if (thisfield.value == "") {
      thisfield.value = defaulttext;
   }
}


function isNumeric(e) {

   if ([e.keyCode||e.which] == 8 || 
      [e.keyCode||e.which] == 9 || 
      [e.keyCode||e.which] == 13 || 
      [e.keyCode||e.which] == 16 || 
      [e.keyCode||e.which] == 17 || 
      [e.keyCode||e.which] == 19 || 
      [e.keyCode||e.which] == 32 || 
      [e.keyCode||e.which] == 37 || 
      [e.keyCode||e.which] == 38 || 
      [e.keyCode||e.which] == 39 || 
      [e.keyCode||e.which] == 40 || 
      [e.keyCode||e.which] == 42 || 
      [e.keyCode||e.which] == 43 || 
      [e.keyCode||e.which] == 45 || 
      [e.keyCode||e.which] == 46
   ) //this is to allow backspace
      return true;
   if ([e.keyCode||e.which] < 48 || [e.keyCode||e.which] > 57)
      e.preventDefault? e.preventDefault() : e.returnValue = false;
}


function isAlphabet(e) {
   
   if ([e.keyCode||e.which] == 8 || 
      [e.keyCode||e.which] == 9 || 
      [e.keyCode||e.which] == 13 || 
      [e.keyCode||e.which] == 16 || 
      [e.keyCode||e.which] == 17 || 
      [e.keyCode||e.which] == 19 || 
      [e.keyCode||e.which] == 32 || 
      [e.keyCode||e.which] == 37 || 
      [e.keyCode||e.which] == 38 || 
      [e.keyCode||e.which] == 39 || 
      [e.keyCode||e.which] == 40 || 
      [e.keyCode||e.which] == 42 || 
      [e.keyCode||e.which] == 43 || 
      [e.keyCode||e.which] == 45 || 
      [e.keyCode||e.which] == 46
   ) //this is to allow backspace
      return true;
   if ([e.keyCode||e.which] < 65 || [e.keyCode||e.which] > 250)
      e.preventDefault? e.preventDefault() : e.returnValue = false;
   
}