function getScroll() {
	if( typeof( window.pageYOffset ) == 'number' ) {
		//Netscape compliant
		return  window.pageYOffset;
	} else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
		//DOM compliant
		return document.body.scrollTop;
	} else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
		//IE6 Strict
		return scrOfY = document.documentElement.scrollTop;
	}
	return 0;
}



	window.addEvent('domready', function() {
		$$('.relations .tabs li').addEvent('click', function() {
				$$('.relations .r_cnt').each(function(item){
					item.style.display =  'none';
				});

				$$('.relations .tabs li').each(function(item){
					item.className =  'none';
				});

				$(this.id.replace('t_','r_')).style.display =  'block';
				this.className =  'sel';
			}
		);
	});