Changing indicator line color

Hi Guys,

I have a stochastic and I am trying to change the colour based on whether the %K is higher than the %D and vice-versa.

What I have doesnt work, if someone has a few minutes could they please have a look. What I am getting is a gap between the colour changes.

The indicator is attached below.

Reagrds
Steve





//+------------------------------------------------------------------+
//| Stochastic.mq4 |
//| Copyright 2004, MetaQuotes Software Corp. |
//| http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright 2004, MetaQuotes Software Corp."

#property link "http://www.metaquotes.net/"
#property indicator_separate_window
#property indicator_minimum -5
#property indicator_maximum 105
#property indicator_buffers 2
#property indicator_color1 LightSeaGreen
#property indicator_color2 Red

//---- input parameters
extern int KPeriod=10;
extern int DPeriod=3;
extern int Slowing=3;

//---- buffers
double MainBuffer[];
double SignalBuffer[];
double BufLine[];
double SigLine[];
double HighesBuffer[];
double LowesBuffer[];

//----
int draw_begin1=0;
int draw_begin2=0;

//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- 2 additional buffers are used for counting.
IndicatorBuffers(6);

//---- indicator lines
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0, MainBuffer);
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1, SignalBuffer);
SetIndexBuffer(2, HighesBuffer);
SetIndexBuffer(3, LowesBuffer);
SetIndexBuffer(4, BufLine);
SetIndexBuffer(5, SigLine);

//---- name for DataWindow and indicator subwindow label
short_name="Sto("+KPeriod+","+DPeriod+","+Slowing+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
SetIndexLabel(1,"Signal");

//----
draw_begin1=KPeriod+Slowing;
draw_begin2=draw_begin1+DPeriod;
SetIndexDrawBegin(0,draw_begin1);
SetIndexDrawBegin(1,draw_begin2);

//----
return(0);
}

//+------------------------------------------------------------------+
//| Stochastic oscillator |
//+------------------------------------------------------------------+
int start()
{
int i,k;
int counted_bars=IndicatorCounted();
double price;

//----
if(Bars<=draw_begin2) return(0);

//---- initial zero
if(counted_bars<1)
{
for(i=1;i<=draw_begin1;i++) BufLine[Bars-i]=0;
for(i=1;i<=draw_begin2;i++) SigLine[Bars-i]=0;
}

//---- minimums counting
i=Bars-KPeriod;
if(counted_bars>KPeriod) i=Bars-counted_bars-1;

while(i>=0)
{
double min=1000000;
k=i+KPeriod-1;

while(k>=i)
{
price=Low[k];

if(min>price) min=price;
k--;
}

LowesBuffer[i]=min;
i--;
}

//---- maximums counting
i=Bars-KPeriod;
if(counted_bars>KPeriod) i=Bars-counted_bars-1;

while(i>=0)
{
double max=-1000000;
k=i+KPeriod-1;

while(k>=i)
{
price=High[k];

if(max<price) max=price;
k--;
}

HighesBuffer[i]=max;
i--;
}

//---- %K line
i=Bars-draw_begin1;
if(counted_bars>draw_begin1) i=Bars-counted_bars-1;

while(i>=0)
{
double sumlow=0.0;
double sumhigh=0.0;

for(k=(i+Slowing-1);k>=i;k--)
{
sumlow+=Close[k]-LowesBuffer[k];
sumhigh+=HighesBuffer[k]-LowesBuffer[k];
}

if(sumhigh==0.0)
{
BufLine[i]=100.0;
} else {
BufLine[i]=sumlow/sumhigh*100;
}
i--;
}

//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
int limit=Bars-counted_bars;

//---- signal line is simple movimg average
for(i=0; i<limit; i++)
{
SigLine[i]=iMAOnArray(BufLine,Bars,DPeriod,0,MODE_SMA,i);
}

//----
for(i=0; i<limit; i++)
{
if(BufLine[i]>SigLine[i])
{
MainBuffer[i] = BufLine[i];
}
else
{
SignalBuffer[i] = BufLine[i];
}
}
return(0);
}

//+---------------------------------------------------