loadbar.js代码如下
function loadBar(fl) //fl is show/hide flag { var x,y; if (self.innerHeight) {// all except Explorer x = self.innerWidth; y = self.innerHeight; } else if (document.documentElement && document.documentElement.clientHeight) {// Explorer 6 Strict Mode x = document.documentElement.clientWidth; y = document.documentElement.clientHeight; } else if (document.body) {// other Explorers x = document.body.clientWidth; y = document.body.clientHeight; }
var el=document.getElementById('loader'); if(null!=el) { var top = (y/2) - 50; var left = (x/2) - 150; if( left<=0 ) left = 10; el.style.visibility = (fl==1)?'visible':'hidden'; el.style.display = (fl==1)?'block':'none'; el.style.left = left + "px" el.style.top = top + "px"; el.style.zIndex = 2; } }