function disp(url,width,height) {
	var Win=window.open(url,"disp",'width=360, height=200, resizable=no, noresize, scrollbars=yes, title=""');
	if (Win) {
		Win.focus();
		}
}
function prev(url,width,height) {
	var Win=window.open(url,"disp",'width=800, height=600, resizable=no, noresize, scrollbars=yes, title=""');
	if (Win) {
		Win.focus();
		}
}
function showit(id){
	if(document.getElementById(id).style.display == "none") {
		document.getElementById(id).style.display = "block";
	} else {
		document.getElementById(id).style.display = "none";
	}
}
function closeit() {
	window.close();
}
function printit() {
	window.print();
}