var layerstate = 0;

function LayerCheck()
{
	if(layerstate == 0)
	{	
		if(document.forms['layerform'].elements['layerchecker'].value != "")
		{
		layerstate = document.forms['layerform'].elements['layerchecker'].value;
		tip('issue'+document.forms['layerform'].elements['layerchecker'].value); //return true;
		}
	}
	else
	{
		if(document.forms['layerform'].elements['layerchecker'].value != layerstate)
		{
		layerstate = 0;
		untip(); //return true;
		}
	}
setTimeout("LayerCheck();",25);	
}