var tokens = size.split("_");
var sizes = tokens[0].split("x");
document.write('<div id="place_holder_'+key+'" style="width:'+sizes[0]+'px; height:'+sizes[1]+'px"></div>');

if(typeof(adsItSingleton) == "undefined"){
	var adsItSingleton = new Array();
}

if(typeof(adsItSingleton[key]) == "undefined"){
	adsItSingleton[key] = true;
    var adsit_api_root_path = "http://www.ads-it.com/api/v1-1/core";
    var date = Math.floor(Math.random()*110000);
    var randomToken = 'r' + date;
    document.write('<script src="' + adsit_api_root_path + '?r='+date+'&key='+key+'&size='+size + '&rtoken='+randomToken+'"></script>');
}