function showPopup(url, name,  width, height, position) {
	
	if ( position == 'righttop' )  {
	 	var left = (screen.availWidth - width);
	 	var top = 0;
	} else if ( position == 'middle' ) {
	 	var left = (screen.availWidth - width) / 2;
		var top = (screen.availHeight - height) / 2;
	} else {
		var left = 0;
		var top = 0;
	}

	newwindow=window.open(url,name,'height=' + height +  ',' + 'width=' + width + ',' + 'resizable=1');
	newwindow.moveTo( left, top );
//	if (window.focus) {newwindow.focus();}
//	return false;
}

function showPopup(url, name,  width, height, position, additionalParameter) {
	
	if ( position == 'righttop' )  {
	 	var left = (screen.availWidth - width);
	 	var top = 0;
	} else if ( position == 'middle' ) {
	 	var left = (screen.availWidth - width) / 2;
		var top = (screen.availHeight - height) / 2;
	} else {
		var left = 0;
		var top = 0;
	}

	newwindow=window.open(url, name, 'height=' + height +  ',' + 'width=' + width + ',' + 'resizable=1' + ',' + additionalParameter );
	newwindow.moveTo( left, top );
//	if (window.focus) {newwindow.focus();}
//		return false;
}