function verifyColorSelection()
{
	if (colorForm.abstract.checked == false && colorForm.landscape.checked == false) {
	  alert ("Please choose at least one of the themes (Abstract and/or Landscape)");
	  return false;
	}
	
	if (!(colorForm.black.checked == true || colorForm.white.checked == true || colorForm.red.checked == true || 
		  colorForm.blue.checked == true || colorForm.green.checked == true || colorForm.sand.checked == true || 
		  colorForm.brown.checked == true || colorForm.purple.checked == true || colorForm.yellow.checked == true || 
		  colorForm.rustyOrange.checked == true || colorForm.lavender.checked == true || colorForm.mustard.checked == true || 
		  colorForm.turquoise.checked == true || colorForm.grey.checked == true ) &&
		  colorForm.rainbow.checked == false )
	{
	  alert ("Please choose at least one dominant color");
	  return false;
	}
    
	return true;
}

function clearColors()
{
if (colorForm.rainbow.checked == true) {
colorForm.black.checked=false;
colorForm.white.checked=false;
colorForm.mustard.checked=false;
colorForm.turquoise.checked=false;
colorForm.grey.checked=false;
colorForm.lavender.checked=false;
colorForm.rustyOrange.checked=false;
colorForm.red.checked=false;
colorForm.blue.checked=false;
colorForm.green.checked=false;
colorForm.sand.checked=false;
colorForm.brown.checked=false;
colorForm.purple.checked=false;
colorForm.yellow.checked=false;
}
}

function clearRainbow()
{
  colorForm.rainbow.checked = false;
}