1.获取非行间样式
function getStyle (obj,name){
if(obj.currentStyle){
return obj.currentStyle[name]; //IE
}
else{
return getComputedStyle(obj,false)[name]; //标准（Firefox，Chrome）
}
}
2.查找节点
if(obj.firstElementChild){
obj.firstElementChild.style.background = 'green'; //IE6-8外使用
}
else{
obj.firstChild.style.background = 'green'; //IE6-8
}
相似用法：lastElementChild-lastChild；
previousElementSibling-previousSibling；
nextElementSibling-nextSibling;
3.透明度
if(attr=='opacity'){ //attr为属性名，IE
//获取attr值cur
//cur = Math.around(parsrFloat(getStyle(obj,attr))*100);
//设置透明度
obj.style.filter = 'alpha(opacity:'+cur+')';
obj.style.opacity = cur/100;
}
else{
//获取,标准DOM
//cur = parseInt(getStyle(obj,attr));
//设置
obj.style[attr] = cur +'px';
}
4.创建Ajax
if(window.XMLHttpRequest){
oAjax = new XMLHttpRequest(); //标准DOM
}
else{
oAjax = new ActiveXObject("Microsoft.XMLHTTP"); //IE
}
5.事件与目标
oEvent = ev||event;
o = event.target||event.srcElement;
6.事件监听
if(obj.attachEvent){
obj.attachEvent('on'+oEvent,function(){ //IE
//do something......
});
}
else{
obj.addEventListener(oEvent,function(ev){ //do something......},false); //标准DOM
}
7.移除事件
if(element.removeEventListener){ //标准DOM
element.removeEventListener(oEvent);
}
else{
element.detachEvent('on'+oEvent); //IE
}
8.阻止默认
if(oEvent.preventDefault){
oEvent.preventDefault(); //标准DOM
}
else{
oEvent.returnValue = false; //IE
}
9.阻止冒泡
if(oEvent.stopPropagation){
oEvent.stopPropagation(); //标准DOM
}
else{
oEvent.cancelBubble = true; //IE
}
......