function showHideDiv(id, status){
	var divObj = document.getElementById(id);
	if(status) {
		divObj.style.visibility = "visible";
		divObj.style.display = "block";
	}else{
		divObj.style.visibility = "hidden";
		divObj.style.display = "none";
	}
}

function showHideDivOverlap(id, status){
	var divObj = document.getElementById(id);
	if((document.getElementById('chk5').checked)){
        divObj.style.visibility = "visible";
		divObj.style.display = "block";
		
		divObj1 = document.getElementById('image6');
		divObj1.style.visibility = "hidden";
		divObj1.style.display = "none";
		
    }else{
	    if((document.getElementById('chk2').checked)){
		    divObj1 = document.getElementById('image6');
	        divObj1.style.visibility = "visible";
			divObj1.style.display = "block";
		}
		divObj.style.visibility = "hidden";
		divObj.style.display = "none";
	}
    
}

function showHideDivOverlap1(id, status){
	var divObj = document.getElementById(id);
	if((document.getElementById('chk2').checked) && (!document.getElementById('chk5').checked)){
        divObj.style.visibility = "visible";
		divObj.style.display = "block";
		
		divObj1 = document.getElementById('image4');
		divObj1.style.visibility = "hidden";
		divObj1.style.display = "none";
		
    }else{
		divObj.style.visibility = "hidden";
		divObj.style.display = "none";
	}
    
}

function uncheck(){
	for(var i=1;i<=6;i++){
		var chk = 'chk' + i;
		if(document.getElementById('chk'+i).checked){
			document.getElementById('chk'+i).checked = false;
		}
	}
}