function shwhd( iddiv, total ){

	if( document.getElementById( 'div_' + iddiv ) ){

		for(i = 1; i <= total; i++){
			if( document.getElementById( 'div_' + i ) ){
				document.getElementById( 'div_' + i ).style.display = "none";

				if( document.getElementById('lnk_' + i) ){
					document.getElementById('lnk_' + i ).setAttribute("class", "tab");
					document.getElementById('lnk_' + i ).className = 'tab';
				}
			}
		}

		document.getElementById( 'div_' + iddiv ).style.display = 'block';

		if( document.getElementById('lnk_' + iddiv ) ){
			document.getElementById('lnk_' + iddiv ).setAttribute("class", "active_tab");
			document.getElementById('lnk_' + iddiv ).className = 'active_tab';
		}
		
	}
}