function openWindow(url, width, height, is_scroll, is_resize, is_centered) {

	var pHoriz;
	var top;
	var left;

	if (is_centered == 1) {
		if(window.screen) {
			left = (screen.width - width) / 2;
    			top  = (screen.height - height) / 2;
		}
	} else {
		left = 100;
		top = 100;
	}

	if(!pHoriz || pHoriz.closed) {
       	pHoriz = window.open(url,'','width='+ width +', height='+ height +', left='+ left +', top='+ top +', screenX='+ left +', screenY='+ top +', scrollbars='+ is_scroll +', resizable= '+ is_resize +', menubar=no, toolbar=no');
    	} else {
       	pHoriz.focus();
    	}
}

function multi_page_jump( url_bit, total_posts, per_page ) {
	pages = 1; cur_st = parseInt(""); cur_page  = 1;
	if ( total_posts % per_page == 0 ) { 
		pages = total_posts / per_page; 
	} else { 
		pages = Math.ceil( total_posts / per_page ); 
	}

	msg = "Please enter a page number to jump to between 1 and" + " " + pages;
	if ( cur_st > 0 ) { 
		cur_page = cur_st / per_page; cur_page = cur_page -1; 
	}

	show_page = 1;
	if ( cur_page < pages )  { show_page = cur_page + 1; }
	if ( cur_page >= pages ) { show_page = cur_page - 1; }
	else { show_page = cur_page + 1; }

	userPage = prompt( msg, show_page );
	if ( userPage > 0 ) {
		window.location = url_bit + "&p=" + userPage;
	}
}