// JavaScript Document

function switch_image(img_name, imgDiv){
	if(document.getElementById(imgDiv)){
		document.getElementById(imgDiv).src = "images/letters/"+img_name;	
	}
}


function store_image_choice(sku, div){
	if(document.getElementById(div)){
		document.getElementById(div).value = sku
	}
}


//save the inputted word and selected letter images so it can be sent to PayPal
function save_choices(num_letters){
	var word = "";
	var skus = "";
	
	for(x=0; x<num_letters; x++){
		if(document.getElementById('letters_' + x).value == '' || document.getElementById('choices['+x+']').value == ''){
			alert("Sorry, but you did not select " + num_letters + " letters!");
			return false;
		}
		
		word += document.getElementById('letters_' + x).value;
		if(x==0)
			skus += document.getElementById('choices['+x+']').value;	
		else
			skus += ", " + document.getElementById('choices['+x+']').value;	
	}
	
	document.getElementById('os0').value = word.toUpperCase() + " ("+ skus + ")"; 
	return true;
}