$(document).ready(function(){
			document.onkeydown = function(e){ 	
				if (e == null) { // ie
					keycode = event.keyCode;
				} else { // mozilla
					keycode = e.which;
				}
				if(keycode == 73){ // push i 
					var ifr = document.getElementById("TB_iframeContent");
					if (document.all) //IE
						ifr.document.body.focus();
					else //Firefox
						ifr.contentDocument.body.focus();
					window.print();
				}else if(keycode == 27){ // close
					tb_remove();
				}
				
			};		
		});