var iCurrentDisplay;

iCurrentDisplay = 1;

function tryNext() {
	iCurrentDisplay++;
	
	//alert(iCurrentDisplay);
	//alert("try" + String(iCurrentDisplay - 1));
	
	if (iCurrentDisplay > 7) {
		iCurrentDisplay = 1;
		document.getElementById("try1").style.display = '';				
		document.getElementById("try7").style.display = 'none';		
	}
	else {
		document.getElementById("try" + String(iCurrentDisplay - 1)).style.display = 'none';
		document.getElementById("try" + String(iCurrentDisplay)).style.display = '';
	}
}