摘要：1 function getSelectedText(textbox) {2 if (document.selection) {3 return document.selection.createRange().text;4 } else {5 return textbox.value.substring(textbox.selectionStart,textbox.selectionEnd);6 }7 }IE9之前不提供selectionStart,selectionEnd属性下面是根据起始位置和结束位置选取字符串： 1 function selectText(textbox, startI 阅读全文

摘要：1 var EventUtil = { 2 addHandler: function (element, type, handler) { 3 if (element.addEventListener) { 4 element.addEventListener(type, handler, false); 5 } else if (element.attachEvent) { 6 element.attachEvent("on" + type, handler); 7 } else { 8 element["on" + type] = handler; 阅读全文