function openwindow() {
var window_location;
window_location=window.open("","window","scrollbars=yes,width=770,height=900");
}

window.onload = function() {
var imgCnt = document.images.length;

for (var i = 0; i < imgCnt; i++) {
	document.images[i].oncontextmenu=rightClick;
}

function rightClick()
{
	return false;
}
}