// Funktion til at lave rollover på forsiden.
var orgImg = "original_image.png";
var path = "files/system/images/";

function roll_on(id){
	loc = id.indexOf(' ');
	lowercaseid = id.toLowerCase();
	
	if (loc == -1){
		
		// Check if there is a picture to swap with, otherwise just don't do anything.
		if (document.getElementById("rollover-" + lowercaseid) != null){	
			var newSrc = document.getElementById("rollover-" + lowercaseid).getAttribute("src");
			document.getElementById("rollover").setAttribute("src", newSrc);
		}
	}
	
	else{
		id = id.substring(id,loc);
		lowercaseid = id.toLowerCase();
		
		// Check if there is a picture to swap with, otherwise just don't do anything.
		if (document.getElementById("rollover-" + lowercaseid) != null){
			var newSrc = document.getElementById("rollover-" + lowercaseid).getAttribute("src");
			document.getElementById("rollover").setAttribute("src", newSrc);
		}
	}
}

function roll_out(){
	document.getElementById("rollover").setAttribute("src", path + orgImg);
}