var prev_element='';

function toggleLocations(element) {
	
	if(element==0 && prev_element.length==0) {
		var i=1;
		for(i=1;i<=999;i++) {
			if(document.getElementById('locationTr' + i)) {
				document.getElementById('locationTr' + i).style.display="block";
			}
		}
	}
	
	if(document.getElementById('locationTr' + element)) {
		document.getElementById('locationTr' + element).style.display="none";
	}
	
	if(prev_element.length>0 && document.getElementById(prev_element)) {
		document.getElementById(prev_element).style.display="block";
	}
	
	prev_element='locationTr' + element;
	
}