var oldDom = null; 

function swapForm(objectID) {

	dom = findDOM('subSelector',objectID,1);
	if (oldDom) oldDom.visibility = 'hidden';
	dom.visibility = 'visible';
	oldDom = dom;
	oldObjectID = objectID;
}
		

function validForm(formEntries) {
	
	if (formEntries.name.value == "") {
		alert("Please provide your name")
		formEntries.name.focus()
		formEntries.name.select()
		return false
	}

	if (!validEmail(formEntries.email.value)) {
		alert("Sorry, the email address is mistyped")
		formEntries.email.focus()
		formEntries.email.select()
		return false
	}
		
	return true

}
	
function validEmail(em) {
	invalidChars = "/:,;"
	
	if (em == "") {
		return false
	}
	
	for (i=0; i<invalidChars.length; i++) {
		badChar = invalidChars.charAt(i)
		if (em.indexOf(badChar,0) > -1 ) {
			return false
		}
	}
	
	atPos = em.indexOf("@",1)
	if (atPos == -1) {
		return false
	}
	
	if (em.indexOf("@",atPos+1) > -1) {
		return false
	}
	
	periodPos = em.indexOf(".",atPos)
	if (periodPos == -1) {
		return false
	}
	
	return true

}