// JavaScript Document
// Create new main array. Good for empty text fields
var txt_name = new Array() 
// Form field names is listed first followed by a descriptive name to be show in the js pop up if left blank
txt_name[0] = new Array("F_NAME","First Name") 
txt_name[1] = new Array("L_NAME","Last Name") 
txt_name[2] = new Array("ADDRESS","Street Address")
txt_name[3] = new Array("CITY","City")
txt_name[4] = new Array("ZIP","Zip Code")


// drop boxes to be validated
var drop = new Array()
drop[0] = new Array("STATE", "State")


// check for blank text fields
function missing_content(){
	// check the regular text fields for empty content
	var j;
	var error_ct=0; // a counter variable for the errors;
	var missing_empty = "";


	// [01] CHECK THE TEXT FIELDS FROM THE ARRAY ABOVE
	for (j=0; j<txt_name.length; j++){
		if (document.contact[txt_name[j][0]].value == "") {
			missing_empty+= txt_name[j][1] + "\n";
		}
	}
	return missing_empty;
}

// function for the value of the dropdown field
function drop_valid(drop_name) { // this will only work when the first value is set to: ""
	var d;
	var missing_drop = "";
	
	for (d=0; d<drop_name.length; d++){
		if (document.contact[drop_name[d][0]].selectedIndex == ""){
			missing_drop+= drop_name[d][1] + "\n";
		}
	}
	return missing_drop;
}



// email validation
function checkEmail(myForm) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(myForm)){
		return (true)
	}
	return (false)
}


// BEGIN: FULL VALIDATION
function validation(){
	var missing = "";

	// ck for blank fields
	missing = missing_content();

	// make sure at least one of the phone numbers is filled:
	my_home_ph = document.contact["PHONE_HOME"].value;
	my_work_ph = document.contact["PHONE_WORK"].value;
	if (my_home_ph == "" && my_work_ph == ""){
		missing += "Phone number for home or work\n";
	} 


	// ck the drop down fields
	miss_drop = drop_valid(drop);
	missing += miss_drop;

	// ck and validate the email address
	email = checkEmail (document.contact["EMAIL"].value);
	
	if (email == false){
		missing+= "Invalid Email Address\n";
	}


// FINALE: is anything missing?
	if (missing != ""){
		missing_hdr = "The Following Errors Have Occurred:\n";
		missing_ftr = "\n\n";
		alert (missing_hdr + missing + missing_ftr);
		return false;
	} else {	
		return true;
	}

}