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; } }