Switch iFrame code

switchframe.js

function switchFrame() {
 	var currentFrame = $("#iframetograb").attr('src');
 	var newFrame, buttnTxt, newHeightWrapper, newHeightContent;
 	if (currentFrame.indexOf("fb") > 0){
 		newFrame = ''; 
 		buttnTxt = 'Click to signup with Facebook';
 		newHeightWrapper=470;
 		newHeightContent=430;
 	}
 	else{
 		newFrame = ''; 
 		buttnTxt = 'Click here to signup without Facebook';
 		newHeightWrapper= 640;
 		newHeightContent=602;
 	}
 	$('#iframetograb').attr('src', newFrame);
 	//use doTimeout to delay this, allowing it to have a chance to load the next frame
 	$.doTimeout(1500, function(){
	 	$('#switchbutton').attr('value', buttnTxt);
 		$('#ibox2_wrapper').height(newHeightWrapper);
 		$('#ibox2_content').height(newHeightContent);
 		});
 	return ;
 	
 }