/* 
Author: Marco Pasillas

Description: This file should contain site-wide Javascript functions used 
			throughout singularresearch.com. Functions should be modular and generic 
			as possible as to minimize dependency on a certain page or section.
*/	
function hide(id, d, s) { // shows/hides certain blocked id elements 
browsername = navigator.appName;
identity = document.getElementById(id);
der = document.getElementById(d);
ser = document.getElementById(s);
	if(identity.style.display != "none") {
		identity.style.display = "none";
		der.id = s;
	} else {
	der = document.getElementById("collapser");
		if (browsername.indexOf("Netscape")!=-1) {
			identity.style.display = "table-cell";
			ser.id = d;
		} else if (browsername.indexOf("Microsoft")!=-1) {
			identity.style.display = "block";
			ser.id = d;
		}
	}
}

function showhide(id, id2, d, s) { // shows/hides certain blocked id elements 
browsername = navigator.appName;
identity = document.getElementById(id);
identity2 = document.getElementById(id2);
der = document.getElementById(d);
ser = document.getElementById(s);
	if (browsername.indexOf("Netscape")!=-1) {
		if(identity.style.display != "none") {
			identity2.style.display = "table-cell";
			identity.style.display = "none";
			der.id = s;
		} else {
			ser.id = d;
			identity.style.display = "table-cell";
			identity2.style.display = "none";
		}
	} else if (browsername.indexOf("Microsoft")!=-1) {
		if(identity.style.display != "none") {
			identity2.style.display = "block";
			identity.style.display = "none";
			der.id = s;
		} else {
			ser.id = d;
			identity.style.display = "block";
			identity2.style.display = "none";
		}	
	}
}

//DW Functions for rollover images
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}