var imageURL = "images/inta.jpg"
function setactivestylesheet(title) {
var i, a, main;


for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
	if(a.getAttribute("rel").indexOf("style")!= -1 && a.getAttribute("title")) {
		a.disabled = true;
		if(a.getAttribute("title") == title) a.disabled = false;
	}
}


          if (imageURL == "images/inta.jpg") {imageURL = "images/int.jpg";}
          else {imageURL = "images/inta.jpg";}

         document.myImage.src = imageURL;
 
}

function getActiveStyleSheet() {
var i, a;
for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
	if(a.getAttribute("rel").indexOf("style")!= -1 && a.getAttribute("title") &&!a.disabled) return a.getAttribute("title");
}
return null;
}


function setsheet() {
	var b;
	b=getActiveStyleSheet();
	if (b=='original') {
		setactivestylesheet('stins');
	} else {
		setactivestylesheet('original');
	}
}