Particle problem

typedef struct
{
bool active;
float life;
float fade;

float r;
float g;
float b;

float x;
float y;
float z;

float xi;
float yi;
float zi;

}particles;


void DrawParticles(/*unsigned int texture*/int MAX_PARTICLES,float r,float g,float b)
{
GLuint	loop;
//Create storage for Maximum number of particles

particles particle[MAX_PARTICLES];

//Bind the particle texture

//glBindTexture(GL_TEXTURE_2D,texture);


//Asign values to particles

for(loop=0;loop<MAX_PARTICLES;loop++)
{
    particle[loop].active=true;
    particle[loop].life=1.0;
    particle[loop].fade=float(rand()%100)/1000.0f+0.003f;
    
    particle[loop].r=r;
    particle[loop].g=g;
    particle[loop].b=b;
    
    particle[loop].xi=((rand()%50)-26.0f)*10.0f;
    particle[loop].yi=((rand()%50)-25.0f)*10.0f;
    particle[loop].zi=((rand()%50)-25.0f)*10.0f;
}
for (loop=0;loop<MAX_PARTICLES;loop++)
	{
	if (particle[loop].active)
		{
		float x=particle[loop].x;
		float y=particle[loop].y;
		float z=particle[loop].z;
		
        glEnable(GL_BLEND);
        //glDisable(GL_DEPTH_TEST);

		glColor4f(particle[loop].r,particle[loop].g,particle[loop].b,particle[loop].life);
		
		glBegin(GL_TRIANGLE_STRIP);
		glTexCoord2d(1,1); glVertex3f(x+0.5f,y+0.5f,z); // Top Right

		glTexCoord2d(0,1); glVertex3f(x-0.5f,y+0.5f,z); // Top Left

		glTexCoord2d(1,0); glVertex3f(x+0.5f,y-0.5f,z); // Bottom Right

		glTexCoord2d(0,0); glVertex3f(x-0.5f,y-0.5f,z); // Bottom Left

		glEnd();
        glDisable(GL_BLEND);
        //glEnable(GL_DEPTH_TEST);

        glColor4f(1,1,1,1);
        
		particle[loop].x+=particle[loop].xi;
		particle[loop].y+=particle[loop].yi;
		particle[loop].z+=particle[loop].zi;
		
		particle[loop].life-=particle[loop].fade;
		if (particle[loop].life<0.0f)
		{
			particle[loop].life=1.0f;
			particle[loop].x=0.0f;					// Center On X Axis

			particle[loop].y=0.0f;					// Center On Y Axis

			particle[loop].z=0.0f;
		}
	}
}
}