var http = createRequestObject();
var objectId = '';


function createRequestObject(htmlObjectId){
    var obj;
    var browser = navigator.appName;
    
    objectId = htmlObjectId;
    
    if(browser == "Microsoft Internet Explorer"){
        obj = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else{
        obj = new XMLHttpRequest();
    }
    return obj;    
}

function sendReq(serverFileName, variableNames, variableValues) {
	//alert(variableNames);
	var paramString = '';
	
	variableNames = variableNames.split(',');
	variableValues = variableValues.split(',');
	
	for(i=0; i<variableNames.length; i++) {
		paramString += variableNames[i]+'='+variableValues[i]+'&';
	}
	paramString = paramString.substring(0, (paramString.length-1));
			
	if (paramString.length == 0) {
	   	http.open('get', serverFileName);
	}
	else {
		http.open('get', serverFileName+'?'+paramString);
	}
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function handleResponse() {
	
	if(http.readyState == 4){
		responseText = http.responseText;
		eval(responseText);
		
		var frm = document.forms['form1'];
		var sel = frm['id_subcategorie'];
		for(i = sel.options.length; i > 0; i--){
			sel.options[i] = null;
			}
			var opt = new Option();
			
		for(i = 1; i < arr.length; i++){
			var opt = new Option();
			opt.value = arr[i];
			opt.text = arrs[i];
			var x = sel.options.length;
			
			sel.options[x] = opt;
		}
		
		
    }
}