function myBlank(field) {
   if (field) {
      var str=trim(field.value);
      if (str.length==0) {
         alert("This is a required field!"); 
         field.focus();
   	  return -1;
      } 
   } 
}

function myEmail(field) {
   str=trim(field.value);
   if (str.length>0) {
      var tmp  = str.indexOf("@");
      var tmp2 = str.indexOf(".");
      if (tmp==-1 || tmp=="" || tmp2==-1 || tmp2=="") {
        alert("Please supply a valid email address. ");
        field.focus();
        return -1;
       }
   }
}
function myWords(field) {
   var str=trim(field.value);
   if (str.search(/\d/) != -1 ) { 
      alert("'" + field.name + "' should be alphabetic characters only. ");
      field.focus();
	  field.select();
	  return -1;
    } 
}
function myBlank(field) {
   if (field) {
      var str=trim(field.value);
      if (str.length==0) {
         alert("This is a required field!"); 
         field.focus();
   	  return -1;
      } 
   } 
}
function trim(str){
	if(str){
            while(""+str.charAt(0)==" ") str=str.substring(1,str.length);
	    while(""+str.charAt(str.length-1)==" ")str=str.substring(0,str.length-1);
	}
	else{str=""}
	return str;
}
function mySubmit() {
  var time = new Date();
  document.form1.elements["SubmitDate"].value = time.toLocaleString();
  if (myBlank(document.form1.elements["name"])==-1) {return;}
  if (myBlank(document.form1.elements["email"])==-1) {return;}
  document.form1.submit();
}