var i=0;


function first() {
	if (document.images) {
		i=0;
		document.panel.src=panels[i];
		document.form1.slideno.value= " " + (i+1) + " / 24";
		
	}
}

function last() {
	if (document.images) {
		i=23;
		document.panel.src=panels[i];
		document.form1.slideno.value=  " " + (i+1) + " / 24";
	}	
}


function previous() {
	if (document.images) {
		if (i>0)
			i--;
		else
			i=0;
		document.panel.src=panels[i];
		document.form1.slideno.value=  " " + (i+1) + " / 24";
		
	}
}

function next() {
	if (document.images) {
		if (i<23) 
			i++;
		else
			i=23;
		document.panel.src=panels[i];
		document.form1.slideno.value=  " " + (i+1) + " / 24";
	}
}


onerror = null;
function errorHandler(msg, url, line) {
        return true;
}       
window.onerror=errorHandler;