Here is few nice help full toll for javscript injection

Testing different resolutions for web pages
javascript:window.resizeTo(1095,895); window.moveTo(55,55);

Rendered source of the currently displayed page

javascript:var myWin=window.open("","myWin","width=800,height=600,scrollbars,resizable,menubar");var myStr=document.documentElement.outerHTML;myStr=myStr.replace(/\</g,"&lt;").replace(/\>/g,"&gt;").replace(/\r\n/g,"<br>");myWin.document.open();myWin.document.write(myStr);myWin.document.close();

Rendered source for all frames in a frameset:

javascript:var myWin,myStr,fms=window.top.frames;var i,len=fms.length;for(i=0;i<len;i++){myWin=window.open("","frame"+i,"width=800,height=600,scrollbars,resizable,menubar");myStr=fms[i].document.documentElement.outerHTML;myStr=myStr.replace(/\</g,"&lt;").replace(/\>/g,"&gt;").replace(/\r\n/g,"<br>");myWin.document.open();myWin.document.write(myStr);myWin.document.close();}

All tag
javascript:alert(document.body.innerHTML)

http://www.patricktalmadge.com/2006/11/28/javascript-injection/

For more information please google
http://www.google.com/search?hl=en&q=javascript+injection&btnG=Search

NOTE: If you have more please post it on comment

Thanks,

Suresh Behera