function rubylane_peek(userid, format, rows, cols) {
  
	if (format == "thumbs") {
		twidth = theight = 90+12+4+0;
	} else { 
		twidth = theight = 120+15;
	}
	width = twidth*cols + 6;
        if (format == "blog") {
                height = theight*rows+35;
        } else {
	height = theight*rows + 65;
        }

    	var url = 'http://www.rubylane.com/rubylane_peek.tcl?' +
                '&userid=' + userid +
                '&format=' + format +
                '&rows=' + rows +
                '&cols=' + cols;
  
	var html = '<iframe scrolling=no frameborder=0 allowtransparency="true" style="width: '+width+'px; height: '+height+'px;" src="'+url+'"></iframe>';
	document.write(html);
};