var previousItem = 1;
function changeNewsDetail(idx) {
	if(previousItem != -1) {
		document.getElementById("popular_" + previousItem).style.display = 'none';				
	}
	document.getElementById("popular_" + idx).style.display = 'block';
	previousItem = idx;
	return false;
}
			
function open_win(pageurl){
	document.location.href=pageurl;
}

function open_gal(pageurl){
	window.open (pageurl,"galeri","location=0,status=0,scrollbars=0,width=950,height=620");
}

function Show_Ist() {	
	var istDiv = document.getElementById('istanbul');
	var cnkDiv = document.getElementById('canakkale');
	var str1Div = document.getElementById('strait1');
	var str2Div = document.getElementById('strait2');
	
	cnkDiv.style.display='none';
	istDiv.style.display='block';
	str1Div.className="active";
	str2Div.className="passive";
}

function Show_Cnk() {
	var istDiv = document.getElementById('istanbul');
	var cnkDiv = document.getElementById('canakkale');
	var str1Div = document.getElementById('strait1');
	var str2Div = document.getElementById('strait2');
	istDiv.style.display='none';
	cnkDiv.style.display='block';	
	str1Div.className="passive";
	str2Div.className="active";	
}