function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=1,resizable=1,width=700,height=500,left = 320,top = 272');");
}

function newWindow(mypage,w,h){
	var winl = (screen.width-w)/2;
	var wint = (screen.height-h)/2;
	var settings ='height='+h+',';
	settings +='width='+w+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +='toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=1,resizable=1';
	day = new Date();
	id = day.getTime();
	win=window.open(mypage,id,settings);
	if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}

function changepic(imgFile) {
	document.image_main.src = imgFile;
}