var isGecko = (navigator.userAgent.toLowerCase().indexOf('gecko') != -1)?1:0;
var isMinNS4 = (navigator.appName.indexOf("Netscape") >= 0 && parseFloat(navigator.appVersion)>=4)?1:0;
var isMinIE4 = (document.all)?1:0;
if (isGecko == isMinNS4) isMinNS4 = 0;

function tonetteIntro_DoFSCommand(command, args) { 
  if (command == "hideLayer") { 
    document.getElementById('introLayer').style.visibility = 'hidden';
  }
}

function reposition() {
	var xpos_offset = 0;

	if (isMinIE4) {
		browserWidth = document.body.clientWidth;
		if (browserWidth >= 760) xpos_offset = parseInt((browserWidth - 760)/ 2);
	}
	
	if (isMinNS4 || isGecko) {
		browserWidth = window.innerWidth;
		if (browserWidth >= 760) xpos_offset = parseInt((browserWidth - 760)/2 - 8);
	}
	
	if (navigator.userAgent.indexOf('Netscape6') != -1) xpos_offset = xpos_offset + 1;

    if (isMinNS4) document.layers['introLayer'].left = xpos_offset;
    else if (isMinIE4) document.all('introLayer').style.posLeft = xpos_offset;
    else if (isGecko) document.getElementById('introLayer').style.left = xpos_offset;
}

window.onresize = reposition;
window.onload = reposition;