// preload images for rollovers
var imgList=new Array();
function preload() {
    for(i=0; i < preload.arguments.length; i++) {
        imgList[i]=new Image();
        imgList[i].src=preload.arguments[i];
    }
}


// rollovers
function roll(dir,img,state) {
	if (document.images) {
		if (document.images[img].src.indexOf('_a.') < 0) {
			
				document.images[img].src = 'images/' + dir +'/' + img + '_' + state;
			
		}
	}
}


// launch pop-up
function popup(url, width, height){
	var popUpWin = window.open(url, 'popup', 'width=' + width + ',height=' + height + ',toolbar=no, location=no, directories=no, menubar=no,scrollbars=no,resizable=no');
	popUpWin.focus();
}