Mine

function buildString() {
	
	
	
	for(i=0;i < document.survey.elements.length ;i++) {
		
		box = document.survey.elements[i].name;
		
		for( j=0; i < box.length; j++ ) {
			
			if( box.elements[j].checked ) {  // <- The problem
				//box = document.survey.elements[i].options[j];
				//theText = theText+box.name+"="+box.value+'&amp;';
		                document.write("Worked");
			}
			
		}		
	}
	return theText;
	
}