dom中空白换行符也也是一个文本节点,因此需要代替标准的previousSibling,nextSIbling,firstChild,lastChild以及parentNode来避开空白节点
dom中空白换行符也也是一个文本节点,因此需要代替标准的previousSibling,nextSIbling,firstChild,lastChild以及parentNode来避开空白节点
在怿飞 blog看到这方面介绍,对于非ie的浏览器有效
function replaceHtml(el, html) {
var oldEl = typeof el === "string" ? document.getElementById(el) : el;
/*@cc_on // Pure innerHTML is slightly faster in IE
oldEl.innerHTML = html;
return oldEl;
@*/
var newEl = oldEl.cloneNode(false);
newEl.innerHTML = html;
oldEl.parentNode.replaceChild(newEl, oldEl);
/* Since we just removed the old element from the DOM, return a reference
to the new element, which can be used to restore variable references. */
return newEl;
};
el = replaceHtml(el, newHtml) /*instead of el.innerHTML = newHtml.*/
function getPageSize(){
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
xScroll = document.body.scrollWidth;
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
var windowWidth, windowHeight;
if (self.innerHeight) { // all except Explorer
windowWidth = self.innerWidth;
windowHeight = self.innerHeight;
} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else if (document.body) { // other Explorers
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
}
// for small pages with total height less then height of the viewport
if(yScroll < windowHeight){
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
// for small pages with total width less then width of the viewport
if(xScroll < windowWidth){
pageWidth = windowWidth;
} else {
pageWidth = xScroll;
}
arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
return arrayPageSize;
}