// JavaScript Document

var ids=new Array('licNon','licStd','licSrv');

function switchid(id){	
	hideallids();
	showdiv(id);
}

function hideallids(){
	//loop through the array and hide each element by id
	for (var i=0;i<ids.length;i++){
		hidediv(ids[i]);
	}		  
}


function hidediv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id
		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}

function determineQuantity() 
{
	var quant = 1;
	if (document.ppform.os0.value == "License Server")
	{
		//Calculate license count
		quant = parseInt(document.ppform.os2.value.substr(3,3), 10);
		if (!quant || quant == 0) quant = 999;
		if (quant == 'NaN') quant = 1;
		switchid('licSrv');
	}
	else if (document.ppform.os0.value == "Standard") switchid('licStd');
	else switchid('licNon');
	
	document.ppform.quantity.value = quant;
	document.ppform.degammaCost.value = quant * 40 + ' EUROS';
}