function updatePrice(id){
	
	var option1 = document.forms["frmProd"].elements["option1"];
	var option2 = document.forms["frmProd"].elements["option2"];
	var option3 = document.forms["frmProd"].elements["option3"];
	var option4 = document.forms["frmProd"].elements["option4"];
	
	if(option1){
		var op1 = option1.options[option1.selectedIndex].value;
	}
	if(option2){
		var op2 = option2.options[option2.selectedIndex].value;
	}
	if(option3){
		var op3 = option3.options[option3.selectedIndex].value;
	}
	if(option4){
		var op4 = option4.options[option4.selectedIndex].value;
	}
	
	new Ajax.Updater('prod_price', '/includesProd/calculatePrice.php', {
		method: 'get',
		parameters: "?p="+id+"&op1="+op1+"&op2="+op2+"&op3="+op3+"&op4="+op4
	});
}