// var preloadFlag = false;
// function preloadImages() {

//	if (document.images) {
//
//	  otherImageDefault = new Image();	
//	  otherImageDefault.src = "images/frontpage/misc_images.jpg";
//	  otherImage1 = new Image();
//	  otherImage1.src = "images/frontpage/figures.jpg";
//	  otherImage2 = new Image();
//	  otherImage2.src = "images/frontpage/c19_poly_porc.jpg";
//	  otherImage3 = new Image();
//	  otherImage3.src = "images/frontpage/bw_pottery.jpg";
//	  otherImage4 = new Image();
//	  otherImage4.src = "images/frontpage/c18_poly_porc.jpg";
//	  otherImage5 = new Image();
//	  otherImage5.src = "images/frontpage/c18_bw_porc.jpg";
//	  otherImage6 = new Image();
//	  otherImage6.src = "images/frontpage/poly-pottery.jpg";
//	  otherImage7 = new Image();
//	  otherImage7.src = "images/frontpage/european.jpg";
//	  preloadFlag = true;
//	}
// }

// function mouseoff(n){
//     imageOFF = eval(n + ".src");
//     document ['otherImage'].src = imageOFF;
// }
// function mouseon(n){
//          imageON = eval(n + ".src");
//          document ['otherImage'].src = imageON;
//          }


function toggleBox(szDivID, iState, dImage) // 1 visible, 0 hidden
{
    if(document.layers)	   //NN4+
    {
       document.layers[szDivID].visibility = iState ? "show" : "hide";
       document.layers[dImage].visibility = iState ? "hide" : "show";
    }
    else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
        var defobj = document.getElementById(dImage);
        defobj.style.visibility = iState ? "hidden" : "visible";
        var obj = document.getElementById(szDivID);
        obj.style.visibility = iState ? "visible" : "hidden";

    }
    else if(document.all)	// IE 4
    {
        document.all[szDivID].style.visibility = iState ? "visible" : "hidden";
        document.all[dImage].style.visibility = iState ? "hidden" : "visible";
    }
}