Blogger Help : What is BlogThis! ?

javascript:
popw='';
Q='';
x=document;
y=window;
if(x.selection) {
Q=x.selection.createRange().text;
} else if (y.getSelection) {
Q=y.getSelection();
} else if (x.getSelection) {
Q=x.getSelection();
}
popw = y.open('http://www.blogger.com/blog_this.pyra?t=' + escape(Q) + '&u=' + escape(location.href) + '&n=' + escape(document.title),'bloggerForm','scrollbars=no,width=475,height=300,top=175,left=75,status=yes,resizable=yes');if (!document.all) T = setTimeout('popw.focus()',50);
void(0);