/**
 * @author avora
 */

 
 function validate(){
//validate length and check if the number is numeric or not

	if (isNaN($F('area')) || $F('area').length!=3) {
		$('result').innerHTML="Area Code is Invalid";
		$('area').focus();
		$('result').show();
		return false;
	}

	if (isNaN($F('prefix')) || $F('prefix').length!=3) {
		$('result').innerHTML="Phone Number is Invalid";
		$('prefix').focus();
		$('result').show();
		return false;
	}
	
	if (isNaN($F('suffix'))  || $F('suffix').length!=4) {
		$('result').innerHTML="Phone Number is Invalid";
		$('suffix').focus();
		$('result').show();
		return false;
	}

	$('content').hide();
	$('sidebar').hide();
	
	//send now
	doRequest();
}


function goToPrefix(elem, ev){
	
	//check if SHIFT+TAB is pressed
	if(ev.shiftKey && ev.keyCode==9){
		elem.value='';
		elem.focus();
		return false;
	}
	if(elem.value.length == 3){
		//move to prefix field
		$('prefix').focus();
	}
}

function goToSuffix(elem, ev){
	
	//check if SHIFT+TAB is pressed
	if(ev.shiftKey && ev.keyCode==9){
		elem.value='';
		elem.focus();
		return false;
	}
	if(elem.value.length == 3){
		//move to suffix field
		$('suffix').focus();
	}
}

function goToSend(elem, ev){
	
	//check if SHIFT+TAB is pressed
	if(ev.shiftKey && ev.keyCode==9){
		elem.value='';
		elem.focus();
		return false;
	}
	if(elem.value.length == 4){
		//move to send button
		$('send').focus();
	}
}