javascript_2_8.js

function initLanguageSelect() {
	var xhttp = new XMLHttpRequest();
	var url = "https://translate.yandex.net/api/v1.5/tr.json/getLangs?key=key &ui=en";
	xhttp.onreadystatechange = function() {
		if (this.readyState == 4 && this.status == 200) {
			var sourceLanguageSelect = document.getElementById( "source_language");
			var targetLanguageSelect = document.getElementById( "target_language");
			var languages = JSON.parse(this.responseText)["langs"];
			for (var key in languages) {
				sourceLanguageSelect.appendChild(createOption(key, languages[key]));
				targetLanguageSelect.appendChild(createOption(key, languages[key]));
			}
			sourceLanguageSelect.value="de";
			targetLanguageSelect.value="en";
		}
	};	
	xhttp.open("GET", url, true);
	xhttp.send();
}