// JavaScript Document

// determine browser
ns6 = false;
ns4 = (document.layers)? true:false;
ie4 = (document.all)? true:false;
opera = (window.opera)? true:false;
mac = ((navigator.appVersion.indexOf('Mac') != -1) || (navigator.appVersion.indexOf('PowerPC') != -1))? true:false;
macie50 = (mac && ((navigator.userAgent.indexOf('MSIE 5.0') != -1) || (navigator.userAgent.indexOf('MSIE 5.1') != -1)))? true:false;

if (ns4 == ie4 && opera == false) {
	ns6 = true;
	ie4 = ns4 = false;
}


// global variable for keeping track of which div is displayed
var whichDiv;
var divOn;

// function to hide and show divs
function visState(whichDiv, iState) { // 1 visible, 0 hidden
	if(document.layers) {  //NN4+
    document.layers[whichDiv].visibility = iState ? "show" : "hide";
  }
  else if(document.getElementById) {	  //gecko(NN6) + IE 5+
    var obj = document.getElementById(whichDiv);
    obj.style.visibility = iState ? "visible" : "hidden";
  }
  else if(document.all)	{   // IE 4
    document.all[whichDiv].style.visibility = iState ? "visible" : "hidden";
  } 
}

/////////////////////////////////////////////////////////
/*function to swap visible Divs 
  used in pages home.html, services.html, artists.html,  
*/
function swapVisible(showThisOne) { 
  visState(whichDiv, 0); 
	visState(showThisOne, 1);
	whichDiv = showThisOne; 
	//timerRedo = setTimeout("swapVisible('startupDiv')" 5000);
}

// to toggle Div using one button as on/off switch
function toggle (div) {
  visState(div, divOn);
	if (divOn == 1) divOn = 0;
	else divOn = 1;
}