function ptmStep(step)
{
	var ptm1 = document.getElementById("ptm1");
	var ptm2 = document.getElementById("ptm2");
	var ptm3 = document.getElementById("ptm3");
	var ptm4 = document.getElementById("ptm4");
	var ptm5 = document.getElementById("ptm5");
	var ptm6 = document.getElementById("ptm6");
	var ptm7 = document.getElementById("ptm7");
	var ptm8 = document.getElementById("ptm8");
	var ptm9 = document.getElementById("ptm9");
	var ptm10 = document.getElementById("ptm10");
	var ptm11 = document.getElementById("ptm11");
	
	switch(step)
	{
		case 1:
		ptm1.style.display = "block";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
	
		break;
		
		case 2:
		ptm1.style.display = "none";
		ptm2.style.display = "block";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 3:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "block";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 4:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "block";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 5:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "block";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 6:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "block";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 7:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "block";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 8:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "block";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 9:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "block";
		ptm10.style.display = "none";
		ptm11.style.display = "none";
		break;
		
		case 10:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "block";
		ptm11.style.display = "none";
		break;
		
		case 11:
		ptm1.style.display = "none";
		ptm2.style.display = "none";
		ptm3.style.display = "none";
		ptm4.style.display = "none";
		ptm5.style.display = "none";
		ptm6.style.display = "none";
		ptm7.style.display = "none";
		ptm8.style.display = "none";
		ptm9.style.display = "none";
		ptm10.style.display = "none";
		ptm11.style.display = "block";
		break;
	}
}