//------------------- for clearing and replacing text in form input fields and textareas -------------------//
function clearText(thefield) {
  if (thefield.defaultValue==thefield.value) { thefield.value = "" }
} 
function replaceText(thefield) {
  if (thefield.value=="") { thefield.value = thefield.defaultValue }
}
//  End -->

//------------------- show-hide -------------------//
function showMe (it, box) {
var vis = (box.checked) ? "block" : "none";
document.getElementById(it).style.display = vis;
}


// New Form Validation Start
	function validateFormOnSubmit(theForm) {
	var reason = "";
	  reason += validateEmpty(theForm.first_name);
	  reason += validateEmpty(theForm.last_name);
/*	  reason += validateEmpty(theForm.xxxxx);
	  reason += validateEmpty(theForm.xxxxx);*/
	  reason += validateEmail(theForm.email);
	  reason += validatePhone(theForm.phone);	    
	  if (reason != "") {
		alert("Some fields need correction:\n" + reason);
		return false;
	  }
/*	  else{	validateBoxes();}
	}	
	function validateBoxes() {
	  var fields = $("input[name='injuries[]']").serializeArray();
	  if (fields.length == 0) {
		alert('Please let us know what injury you had.');
		return false;
	  }*/
	  return;
	}
	function validateEmpty(fld) {
		var error = "";
	 	var illegalChars = /\W/; // allow letters, numbers, and underscores
		if (fld.value.length == 0) {
			fld.style.background = 'Yellow'; 
			error = "The required field has not been filled in.\n"
		} else if (fld.value == "First Name") {
			fld.style.background = 'Yellow'; 
			error = "The 'First Name' Field must be filled out.\n"
		} else if (fld.value == "Last Name") {
			fld.style.background = 'Yellow'; 
			error = "The 'Last Name' Field must be filled out.\n"				
		} else if (fld.value == "xxxxx") {
			fld.style.background = 'Yellow'; 
			error = "The 'xxxxx' Field must be filled out.\n"	
		} else if (fld.value == "xxxxx") {
			fld.style.background = 'Yellow'; 
			error = "The 'xxxxx' Field must be filled out.\n"	
										
		} else {
			fld.style.background = 'White';
		}
		return error;  
	}
	function trim(s)
	{
	  return s.replace(/^\s+|\s+$/, '');
	}
	function validateEmail(fld) {
		var error="";
		var tfld = trim(fld.value);                        // value of field with whitespace trimmed off
		var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
		var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
		if (fld.value == "") {
			fld.style.background = 'Yellow';
			error = "You didn't enter an email address.\n";
		} else if (!emailFilter.test(tfld)) {              //test email for illegal characters
			fld.style.background = 'Yellow';
			error = "Please enter a valid email address.\n";
		} else if (fld.value.match(illegalChars)) {
			fld.style.background = 'Yellow';
			error = "The email address contains illegal characters.\n";
		} else {
			fld.style.background = 'White';
		}
		return error;
	}
	function validatePhone(fld) {
		var error = "";
		var stripped = fld.value.replace(/[\(\)\.\-\ ]/g, '');    
	   if (fld.value == "") {
			error = "You didn't enter a phone number.\n";
			fld.style.background = 'Yellow';
		} else if (fld.value == "Phone Number") {
			fld.style.background = 'Yellow'; 
			error = "You didn't enter a phone number.\n"
		} else if (isNaN(parseInt(stripped))) {
			error = "The phone number contains illegal characters.\n";
			fld.style.background = 'Yellow';
		} else if (!(stripped.length == 10)) {
			error = "The phone number is the wrong length. Make sure you included an area code.\n";
			fld.style.background = 'Yellow';
		} else {
			fld.style.background = 'White';
		}			
		return error;
	}