function removeAllChild(obj){while(obj.firstChild){obj.removeChild(obj.firstChild)}}function getQueryVariable(variable){var query=window.location.search.substring(1);var vars=query.split("&");for(var i=0;i<vars.length;i++){var pair=vars[i].split("=");if(pair[0]==variable){return pair[1]}}}String.prototype.trim=function(){return this.replace(/^\s\s*/,"").replace(/\s\s*$/,"")};