function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		apps_c = newImage("images/schemas_plants/apps_c.jpg");
		cobra_c = newImage("images/schemas_plants/cobra_c.jpg");
		dingo_c = newImage("images/schemas_plants/dingo_c.jpg");
		dolphin_c = newImage("images/schemas_plants/dolphin_c.jpg");
		fossa_c = newImage("images/schemas_plants/fossa_c.jpg");
		huckepack_c = newImage("images/schemas_plants/huckepack_c.jpg");
		mink_c = newImage("images/schemas_plants/mink_c.jpg");
		mm_c = newImage("images/schemas_plants/mm_c.jpg");
		puma_c = newImage("images/schemas_plants/puma_c.jpg");
		r5_c = newImage("images/schemas_plants/r5_c.jpg");
		samos_c = newImage("images/schemas_plants/samos_c.jpg");
		seco_c = newImage("images/schemas_plants/seco_c.jpg");
		secoprint_c = newImage("images/schemas_plants/secoprint_c.jpg");
		systems_c = newImage("images/schemas_plants/systems_c.jpg");
		turbo_c = newImage("images/schemas_plants/turbo_c.jpg");
		zapchasti_c = newImage("images/schemas_plants/zapchasti_c.jpg");
		preloadFlag = true;
	}
}