getTypeAndCategoryMapping.js

var jq = document.createElement('script');
jq.src = "//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js";
document.getElementsByTagName('head')[0].appendChild(jq);

var outputString = '';

function getCategory(){
	categories = document.getElementById('00NC0000004yBn3').options;
	j$(categories).each(function(){
		if (j$(this).val() !== ''){
			outputString += '\n\t' + j$(this).val();
		}
	});
}

function main(){
	j$ = jQuery.noConflict();
	types = document.getElementById('cas5').options;
	j$(types).each(function(){
		myType = j$(this).val()
		outputString += '\n' + myType;
		j$('#cas5').val(myType);
		j$(types).trigger('change');
		getCategory();
	});
	console.log(outputString);
}

setTimeout(main, 3000);