// JavaScript Document

	function changeClassH(Colum)
	{
		cellOld = document.getElementById(Colum);
		cellOld.className = "BkMenuH";
	}
	function changeClass(Colum)
	{
		cellOld = document.getElementById(Colum);
		cellOld.className = "BkMenu";
	}

function showHideLayer(layer, option) { styleObj = document.getElementById(layer).style; if (option == 1) styleObj.display = 'block'; else if (option == 0) styleObj.display = 'none' }

function changeTab(index){

	if (index != startIndex){
	
		imgLeft = document.getElementById("leftCorner"+index);
		imgRight = document.getElementById("rightCorner"+index);
		cell = document.getElementById("tdTab"+index);
		
		if (startIndex != ""){
			imgLeftOld = document.getElementById("leftCorner"+startIndex);
			imgRightOld = document.getElementById("rightCorner"+startIndex);
			cellOld = document.getElementById("tdTab"+startIndex);
			
			imgLeftOld.src = 'images/cornerL_off.gif';
			imgRightOld.src = 'images/cornerR_off.gif';
			cellOld.className = "tbTab";
			
			showHideLayer('layerTab'+startIndex, '0');
		}
		startIndex = index;
		
		imgLeft.src = 'images/cornerL.gif';
		imgRight.src = 'images/cornerR.gif';
		cell.className = "tbTab_on";
		
		showHideLayer('layerTab'+index, '1'); 	
	}
}