//preload image rollovers
var image = new Array;
var v = new Array;

//declare all images
image[0] = "images/menu_home_over.jpg";
image[1] = "images/menu_layouts_over.jpg";
image[2] = "images/menu_graphics_over.jpg";
image[3] = "images/menu_submit_over.jpg";
image[4] = "images/menu_about_over.jpg";

//set image object src
for(var i=0; i < image.length; i++) {
  v[i] = new Image();
  v[i].src = image[i];
}



//image rollover swapping function
function swapImg(obj) {
	
	var imagePath = obj.src;
	
	if (imagePath.match('over') == null) {
		imagePath = imagePath.slice(0, imagePath.length - 4);
		imagePath += "_over.jpg";
	}
	else {
		imagePath = imagePath.slice(0, imagePath.length - 9);
		imagePath += ".jpg";	
	}
	
	obj.src = imagePath;
	
}



function changeType(obj) {
	
	var type = obj.value;


	var typeLocation = location.href.indexOf('&type=');
	var searchLocation = location.href.indexOf('search=')
	var charDifference =  typeLocation - searchLocation;


	var searchQuery = "";
	if ( charDifference > 7 )
		var searchQuery = location.href.slice(searchLocation + 7, typeLocation);
	
	
	location.href = "browse.php?search=" + searchQuery + "&type=" + type + "&page=1";
	
}