var ptPhotoWidth = 90 ;
var ptPhotoHeight = 90 ;
var gdPhotoWidth = 280 ;
var gdPhotoHeight = 270 ;

function resizePicture( img, maxWidth, maxHeight ){
	
	var scale = 0 ;
	var top = 0 ;

	if( img.width > img.height ){
		scale = parseInt(img.width)/parseInt(maxWidth) ;
		top = ((maxHeight - parseInt(img.height)/scale))/2 ;
	}
	else{
		scale = parseInt(img.height)/parseInt(maxHeight) ;
	}
	
	img.height = parseInt(img.height)/scale ;
	img.style.marginTop = top ;
}

function loadInMainPicture( pict, info ) {
	var main = document.getElementById("mainPict") ;
	
	main.src = pict ;
	main.alt = info ;
}