function noSpam(user, domain, subj){
	locationstring = "mailto:" + user + "@" + domain;
	if (subj != "") {
		locationstring = locationstring + "?subject=" + subj	
	}
	window.location = locationstring;
}

var backgroundSrcs = new Array("http://physics.illinois.edu/images/header/selvin1.jpg","http://physics.illinois.edu/images/header/selvin2.jpg","http://physics.illinois.edu/images/header/chemla1.jpg", "http://physics.illinois.edu/images/header/selvin_dimer1.jpg", "http://physics.illinois.edu/images/header/transistor.jpg")

 function pickimage() 
 { 
 //This line picks an image at random from the list you entered above 
var bgimage=backgroundSrcs[(Math.round(Math.random()*(backgroundSrcs.length-1)))]

 //This line applies the background image to your masthead 
document.getElementById("header_content").style.background = "url('" + bgimage + "') right no-repeat";
 }


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];}
}

function showPopUp(el) {
	var cvr = document.getElementById("cover")
	var dlg = document.getElementById(el)
	cvr.style.display = "block"
	dlg.style.display = "block"
	if (document.body.style.overflow = "hidden") {
		cvr.style.width = "1024"
		cvr.style.height = "100%"
	}
}
function closePopUp(el) {
	var cvr = document.getElementById("cover")
	var dlg = document.getElementById(el)
	cvr.style.display = "none"
	dlg.style.display = "none"
	document.body.style.overflowY = "scroll"
	if (navigator.appName == 'Microsoft Internet Explorer') {
		window.location.reload();	
	}
}