function disableSelection(a){if(typeof a.onselectstart!="undefined"){a.onselectstart=function(){return false}}else{if(typeof a.style.MozUserSelect!="undefined"){a.style.MozUserSelect="none"}else{a.onmousedown=function(){return false}}}a.style.cursor="default"}$(document).ready(function(){var a=document.getElementById("calculator-grid");disableSelection(a)});