var gArrDivNames = new Array("c1", "c2","c3", "c4", "c5");
var gCurDiv = "c1";

function fShowDiv(lName)
{	

	for(var i=0;i<gArrDivNames.length;i++)
	{
		document.getElementById(gArrDivNames[i]).style.display = "none";
	}
	document.getElementById(lName).style.display="block";
	gCurDiv = lName;
	
}