blockArray = new Array("topnews-all","topnews-ir","topnews-residents","topnews-other");


function show(id) {

	block = id;

	if(document.all){
		menuobj = document.all(block).style;
	}
	else if(document.getElementById) {
		menuobj = document.getElementById(block).style;
	}
	if(menuobj) {
		if ( menuobj.display == '' ) {
			//hide(block);
		}
		else {
			menuobj.display='';
		    for (i = 0; i < blockArray.length; i++) {
				if ( blockArray[i] != block) {
			        hide(blockArray[i]);
				}
		    }
		}
	}

}
function hide(id) {

	if(document.all){
		menuobj = document.all(id).style;
	}
	else if(document.getElementById) {
		menuobj = document.getElementById(id).style;
	}
	if(menuobj) {
		menuobj.display='none';
	}
}