// JavaScript Document
function validate(){
if(document.frm.name.value==''){
  alert('Please enter name.');
  document.frm.name.focus();
   return false;
 }
 if(document.frm.email.value==''){
  alert('Please enter email.');
  document.frm.email.focus();
  return false;
}else if (!validate_email(document.frm.email.value)){
	alert('Please enter valid email.');
   document.frm.email.focus();
   return false;
}else if(document.frm.info.value==''){
  alert('Please enter Details.');
  document.frm.info.focus();
  return false;
}


function validate_email(s) {
	var i = 1;
	var valid_chars = '%&*()\'\";:/';
	for (i=0;i<s.length;i++){
    	if (valid_chars.indexOf(s.charAt(i)) != -1){
         		return false; 
		}
	}
	var sLength = s.length;
	i=1;
	while ((i < sLength) && (s.charAt(i) != "@")){
       	i++;
	}
	if ((i >= sLength) || (s.charAt(i) != "@"))
       	return false; 
	else 
		i += 2;
		
   	while ((i < sLength) && (s.charAt(i) != ".")){
        i++;
   	}
	if ((i >= sLength - 1) || (s.charAt(i) != ".")){
		return false;
	}
	return true;
}

}