新打开的窗口无边筐，工具栏什么的，怎么做？

unction openwin4scroll(url,winName,width,height) {
xposition=0; yposition=0;
if ((parseInt(navigator.appVersion) >= 4 )) {
xposition = (screen.width - width) / 2;
yposition = (screen.height - height) / 2;
}
theproperty= "width=" + width + "," 
+ "height=" + height + "," 
+ "location=0," 
+ "menubar=0,"
+ "resizable=0,"
+ "scrollbars=1,"
+ "status=0," 
+ "titlebar=0,"
+ "toolbar=0,"
+ "hotkeys=0,"
+ "screenx=" + xposition + "," //仅适用于Netscape
+ "screeny=" + yposition + "," //仅适用于Netscape
+ "left=" + xposition + "," //IE
+ "top=" + yposition; //IE 
//window.open( url,winName,theproperty );
newwin=window.open('','winName',theproperty );
newwin.location.href =url;
newwin.focus();

return false;