function ad300x250(){
	var str = "<iframe src=\"http://d8.zedo.com/jsc/d8/ff2r.html?n=1014;c=17;d=9;w=300;h=250\" frameborder=0 marginheight=0 marginwidth=0 scrolling=\"no\" allowTransparency=\"true\" width=300 height=250></iframe>";
	//alert(str);
	document.getElementById("desc300x250").innerHTML = str;
}