function valAddress(txtAdd,txtEmail){
    var errorMsg="";
    var error=true;
  

   //validate email
	var str = txtEmail.value; // email string
    
	var reg1 = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; // not valid
	var reg2 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; // valid
	if (!reg1.test(str) && reg2.test(str)) { // if syntax is valid
		
	}
	else{
        
	errorMsg="Incorrect email address.\n";
        txtEmail.focus();
	error= false;
	}

    //validate address
    var trimmed = txtAdd.value.replace(/^\s+|\s+$/g, '') ;
    if (trimmed == "") {
        if(error==true){
           txtAdd.focus();
        }
        
        errorMsg=errorMsg+"Please provide address.\n";
        error=false;
    }

    if(error==false){
       alert(errorMsg);
       return error; 
    }else{
      return error;
    }

}