function openwin(model_num)
   {
    URL ="http://www.carrier.com/CAR_ENT_PRODUCT/product.htm?MODEL=" + model_num;
    window1 = window.open(URL,"_unit","resizable,width=600,height=400,scrollbars,menubar=no");
   }

		function remotewin(url,width,height,scrollbars,resizable){
		var remote=window.open(url,'remote','scrollbars='+scrollbars+',width='+width+',height='+height+',resizable='+resizable);
		remote.focus();
		}