function onChange(obj) {
	var Current = obj.sales_rental.selectedIndex;
	var n = 1;
    obj.price_high.options.length = 0;
	obj.price_low.options.length = 0;

    if (obj.sales_rental.value == "S")
	{
	setsel(obj,"Not Specified","","0");
setsel(obj,"£70,000","70000",n);n=n+1;
setsel(obj,"£80,000","80000",n);n=n+1;
setsel(obj,"£90,000","90000",n);n=n+1;
setsel(obj,"£100,000","100000",n);n=n+1;
setsel(obj,"£125,000","125000",n);n=n+1;
setsel(obj,"£150,000","150000",n);n=n+1;
setsel(obj,"£175,000","175000",n);n=n+1;
setsel(obj,"£200,000","200000",n);n=n+1;
setsel(obj,"£225,000","225000",n);n=n+1;
setsel(obj,"£250,000","250000",n);n=n+1;
setsel(obj,"£275,000","275000",n);n=n+1;
setsel(obj,"£300,000","300000",n);n=n+1;
setsel(obj,"£400,000","400000",n);n=n+1;
setsel(obj,"£500,000","500000",n);n=n+1;
setsel(obj,"£600,000","600000",n);n=n+1;
setsel(obj,"£700,000","700000",n);n=n+1;
setsel(obj,"£800,000","800000",n);n=n+1;
setsel(obj,"£900,000","900000",n);n=n+1;
setsel(obj,"£1,000,000","1000000",n);n=n+1;

	}
	else
	{
	setsel(obj,"Not Specified","","0");
	setsel(obj,"£100 pcm","100",n);n=n+1;
setsel(obj,"£200 pcm","200",n);n=n+1;
setsel(obj,"£300 pcm","300",n);n=n+1;
setsel(obj,"£400 pcm","400",n);n=n+1;
setsel(obj,"£500 pcm","500",n);n=n+1;
setsel(obj,"£600 pcm","600",n);n=n+1;
setsel(obj,"£700 pcm","700",n);n=n+1;
setsel(obj,"£800 pcm","800",n);n=n+1;
setsel(obj,"£900 pcm","900",n);n=n+1;
setsel(obj,"£1000 pcm","1000",n);n=n+1;
setsel(obj,"£1250 pcm","1250",n);n=n+1;
setsel(obj,"£1500 pcm","1500",n);n=n+1;
setsel(obj,"£1750 pcm","1750",n);n=n+1;
setsel(obj,"£2000 pcm","2000",n);n=n+1;
setsel(obj,"£3000 pcm","3000",n);n=n+1;
	}    
}

function setsel(obj,val1,val2,n)
   {
   obj.price_low.options[n] = new Option(val1,val2);
   obj.price_high.options[n] = new Option(val1,val2);
   }