/*******************************************
 *	
 *	Chains for filling models and versions
 *
 *******************************************/
function fillChain( formName, cmbToFill, parentCombo, arValues, cmbV ) 
{
	
	var k;
	var frm = document.forms[ formName ];
	var cmb = frm[ cmbToFill ];
	var _parent = parentCombo.value;
	clearCombo ( cmb );
	k=1; 
	var j = 1;
	for( i = 0; i < arValues.length; i++ ) 
	{
		if( _parent == arValues[i][2]) 
		{
			cmb.options[j] = new Option( arValues[i][1], arValues[i][0] );
			j++ ;
		}
	}
	var cmbVersion = frm[ cmbV ];
	if ( j > 1 ) cmb.disabled = false;
	else 
	{	
		cmb.disabled = true;
		if ( cmbVersion ) 
		{
			clearCombo ( cmbVersion );
			cmbVersion.disabled = true;
		}
	}
}
function clearCombo( cmb )
{
	cmb.options.length = null;
	cmb.options[0] = new Option("-- Select --",0);
}