nTerm=1;
nClass=0;

function xSetTerm(f){
	var n = f.selectedIndex;
	nTerm= f.options[n].value;
	xCalc();
}

function xSetClass(f){
	nClass=parseInt(f.value);
	xCalc();
}

function xCalc(){
	if(nTerm!= 0 && nClass != 0){
		document.simulator.price122.value = price_array[nClass-1][nTerm-1];
				document.simulator.price123.value = price_array[nClass-1][nTerm-1];

	}
}