function popUpWindow(url, width, height) {
	window.open(url, 'Image_display', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width='+(width+16)+',height='+(height+46)+',left = 350,top = 320');
}
function popUpWindow2(url, width, height) {
	window.open(url, 'Image_display', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=1,resizable=1,width='+(width+1)+',height='+(height+1)+',left = 25,top = 25');
}
function print_page() {
	window.print();
}
function popUpHelp(url, width, height){
	window.open(url, 'Help', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width='+(width+1)+',height='+(height+1)+',left = 25,top = 25');
}