function updatePrice() {
	var basePrice = 50;
	var cpuPrices = new Array();
	var memPrices = new Array();
	var hddPrices = new Array();
	hddPrices['50'] = 55; hddPrices['30'] = 35; hddPrices['10'] = 10; hddPrices['5'] = 0; hddPrices['20'] = 25; hddPrices['15'] = 15; 
	cpuPrices['750'] = 20; cpuPrices['333'] = 0; cpuPrices['1600'] = 30; cpuPrices['500'] = 10; cpuPrices['2133'] = 40; cpuPrices['1066'] = 25; 
	memPrices['384'] = 20; memPrices['128'] = 0; memPrices['512'] = 25; memPrices['2048'] = 55; memPrices['1024'] = 40; memPrices['256'] = 15; 
	var totalPrice = basePrice + cpuPrices[Number(document.getElementById("cpuSpeed").value)] + memPrices[Number(document.getElementById("memoryAmmount").value)] + hddPrices[Number(document.getElementById("hddAmmount").value)];
	document.getElementById("customprice").innerHTML = "$ "+ totalPrice;
}