<input type="checkbox" onpropertychange="for(i=0;i<T2.length;i++){with(T2[i]){disabled=!this.checked,style.background=!this.checked?'#ececec':'#ffffff'}}" checked><br> <input name="T2" type="text" size="15" ><br> <input name="T2" type="text" size="15"><br> <input name="T2" type="text" size="15"><br> <input name="T2" type="text" size="15"><br> <input name="T2" type="text" size="15">