//Checks if the supplied fields are empty and highlights field in red if so
function ContactFormValidation (sFieldIDs) {
	var i;
	var arrFields = sFieldIDs.split(":");
	var currField;
	var borderstyle = "1px solid #ea172a";
	var bgcolorstyle = "#f7dbac";
	var bSubmitForm = true;
	var email= /^[\w-\.]+\@[\w\.-]+\.[a-zA-Z]{2,4}$/;
	
	for (i = 0; i < arrFields.length; i++) {
		// Get form field reference
		currField = document.getElementById(arrFields[i]);
		
		// Check for null in the case of a non existing html element
		if (currField != null) {		
			// Set fields style to default
			SetBorderStyle(currField, "default");
			
			// If field is empty then set the style to red background and border
			if (currField.name.toLowerCase() == "email" && (!(email.test(currField.value)))) {
				SetBorderStyle(currField, "error");
				bSubmitForm = false;
			}
			else if (currField.value == "") {
				SetBorderStyle(currField, "error");
				bSubmitForm = false;
			}
		}
	}
	return bSubmitForm;
}
function SetBorderStyle(fldFormField, fDefaultOrError){
	if (fDefaultOrError.toLowerCase() == "error") {
		borderstyle = "1px solid #ea172a";
		bgcolorstyle = "#f7dbac";
	}
	else if (fDefaultOrError.toLowerCase() == "default") {
		borderstyle = "1px solid #51778b";
		bgcolorstyle = "#FFFFFF";
	}
	
	fldFormField.style.border = borderstyle;
	fldFormField.style.background = bgcolorstyle;
}