function doValidateAdd(){
	var Name, Email, Comment;
	
	Name	= document.form1.txtName.value;
	Email	= document.form1.txtEmail.value;
	Comment	= document.form1.txtComment.value;
	
	if (Name.length<1){
		alert ("Please enter valid name");
		return false;
		}
	if(Email.length<5||Email.indexOf("@")==-1||Email.indexOf(".")==-1){
		alert ("Please enter valid email");
		return false;
		}
	if (Comment.length<1){
		alert ("Please enter valid comment");
		return false;
		}
	}