var oldResult='old';
	var newResult='';


function startauto()
{
	if($('select15').value==1) 
	{$('h2').value=0.6;$('h3').value=3;}
	
	if($('select15').value==2) 
	{$('h2').value=0.75;$('h3').value=6;}
	
	if($('select15').value==3) 
	{$('h2').value=0.9;$('h3').value=20;}
}
    function res()
    {
	    
    new Ajax.Updater('resultSpan','sap_files/sap_calculation.php',
    	{
 		method:'post',
		parameters:$('sapform').serialize(true) 
		});
	 		if (oldResult!=$('resultSpan').innerHTML)
	 		{
			new Effect.Highlight('result',{ duration:0.4,startcolor:'#77FC77', endcolor:'#F6F1C1' }); 
			}
	oldResult = $('resultSpan').innerHTML;
    }
    res();
    
    new Form.Observer('sapform',0.02,function()
    { 
	  res(); 

	$('h1').value=decimalfix($('h1').value,1);   
	$('h2').value=decimalfix($('h2').value,2);
	$('h3').value=decimalfix($('h3').value,2);
    });

function decimalfix(num,dec) 
{    
	var numStr=num.toString();	
	var decPos = numStr.indexOf(".");
	
	if (-1==decPos)
	{return num;}
		else 
		{		
		return numStr.substr(0,decPos+1+dec);
		}	 
}