// JavaScript Document

function getDim($id) {
	// old netscape type browsers
	if (document.all){
		myImage = document.all[$id];
		if ( myImage.width > myImage.height ) {
			myImage.width = 100;
			myImage.style.height = 'auto'; 
		} else {
			myImage.height = 100;
			myImage.style.width = 'auto';
		}
	// IE and newer netscape based browsers
	} else if (document.getElementById) {
		myImage = document.getElementById($id);
		if ( myImage.width > myImage.height ) {
			myImage.width = 100;
			myImage.style.height = 'auto'; 
		} else {
			myImage.height = 100;
			myImage.style.width = 'auto';
		}
	}
}