function newWindow(url,width,height,addparam) {
		 w = (width=="")?800:width;
		 h = (height=="")?600:height; 
		 param = (addparam=="")?"scrollbars=auto,resizable=yes":addparam;
		 window.open(url,  "", "width="+w+",height="+h+","+param);
}