function openContent(id) {
	for (i=0;i<=10;i++)
	{
		if(document.getElementById('content-'+i)) {
		document.getElementById('content-'+i).style.display="none";
		document.getElementById('link-'+i).setAttribute("class", "arrowLink");
		document.getElementById('link-'+i).setAttribute("className", "arrowLink");
		}
	}
	
	var mode = document.getElementById('content-'+id).style.display;
	if(mode == 'block') {
		document.getElementById('content-'+id).style.display="none";
		document.getElementById('link-'+i).setAttribute("class", "arrowLink");
		document.getElementById('link-'+i).setAttribute("className", "arrowLink");
	} else {
	   document.getElementById('content-'+id).style.display="block";
	   document.getElementById('link-'+id).setAttribute("class", "arrowLinkActive");
	   document.getElementById('link-'+id).setAttribute("className", "arrowLinkActive");
	}
 }