function cngTab(curTabName){
	document.getElementById("tab_"+curTabName).className = "tab_selected";
	document.getElementById("div_"+curTabName).style.display = "block";
	
	switch (curTabName){
		case "states":
			document.getElementById("tab_inter").className = "tab_notselected";
		break;
		case "inter":
			document.getElementById("tab_states").className = "tab_notselected";
		break;
	}
	
	switch (curTabName){
		case "states":
			document.getElementById("div_inter").style.display = "none";
		break;
		case "inter":
			document.getElementById("div_states").style.display = "none";
		break;
	}
}

function ssc(stateID){
	document.getElementById("div_state_cities").innerHTML = "<table width='780'><tr><td align='left'>List of cities in " + document.getElementById(stateID).innerHTML + ": </td><td align='right'>" + email_link ('feedback','mathlessons.com','?subject=Please add my city','Can\'t find your city, let us know','Can\'t find your City? let us know.') + "</td></tr><tr><td colspan='2'><br />" + document.getElementById("d"+stateID).innerHTML + "</td></tr></table>";
}

function sic(interID){
	document.getElementById("div_inter_cities").innerHTML = "<table width='780'><tr><td align='left'>List of cities in " + document.getElementById(interID).innerHTML + ": </td><td align='right'>" + email_link ('feedback','mathlessons.com','?subject=Please add my city \\ country','Can\'t find your City \\ Country? let us know.','Can\'t find your City \\ Country? let us know.') + "</td></tr><tr><td colspan='2'><br />" + document.getElementById("d"+interID).innerHTML + "</td></tr></table>";
}