var subjectlink = "";
var sorttypelink = "popular";
var picture = "";



function select_element(n,n2,theclass) {
	
	if(eval(n2)!="") {		
document.getElementById(eval(n2)).setAttribute("class","unselected"+theclass);
document.getElementById(eval(n2)).setAttribute("className","unselected"+theclass);
	}
document.getElementById(n).setAttribute("class","selected"+theclass);
document.getElementById(n).setAttribute("className","selected"+theclass);

eval(n2+"='"+n+"';");


}


function open_results() {
open_url("getpictures.php?url=subject1='"+document.getElementById(subjectlink+"hidden").value+"'%20or%20subject2='"+document.getElementById(subjectlink+"hidden").value+"'","level1");
}

function enlarge_picture(n,year,title,filename) {
	select_element(n,"picture","picture");
document.getElementById("level0").innerHTML="<img class='selectedpicture' src='150width/"+filename+"' /><br />title:"+title+"<br />year:"+year+"<br />"+document.getElementById("level0").innerHTML;
}

function rollover(n) {
n.setAttribute("class","unselected");
n.setAttribute("className","unselected");
}

function rollout(n) {
n.setAttribute("class","selected");
n.setAttribute("className","selected");
}

function link_open(n) {
document.location=n;
}