function centrar(anchoWinDiv) {
	if (parseInt(navigator.appVersion)>3) {
	 if (navigator.appName=="Netscape") {
	  winW = window.innerWidth;
	  
	 }
	 if (navigator.appName.indexOf("Microsoft")!=-1) {
	  winW = document.body.offsetWidth;
	 }
	 if(winW >= anchoWinDiv) {
		//winW = (winW - 1024) / 2;
		winW = (winW - anchoWinDiv) / 2;
	 } else {
		winW = 0;
	 }
	 
	 document.getElementById('divBody').style.left = winW + 'px';
	}
}