/* 
 * [a] Dries Van haver
 * [c] Oskar D
 * [w] www.oskard.be
 * 
*/

// uitfaden van de huidige container
	var stack = 15;
	showCol = function(theOne){
		// reset alpha
		theDiv = document.getElementById(theOne);
		theDiv.style.opacity = 0;
		theDiv.style.filter = 'alpha(opacity=0)';
		// verander z-index
		/*changeZIndex(theOne);*/
		var first_effect = new Spry.Effect.Fade(theOne, {duration: 500, from: 0, to: 100, toggle: true});
		first_effect.start();
	}

	hideCol = function(theOne){
		//changeZIndex(theOne);
		var second_effect = new Spry.Effect.Fade(theOne, {duration: 500, from: 100, to: 0, toggle: true});
		second_effect.start();
	}

	// change zindex
	resetZ= function(){
		document.getElementById('c1').style.zIndex = 10;
		document.getElementById('c2').style.zIndex = 11;
		document.getElementById('c3').style.zIndex = 12;
		document.getElementById('c4').style.zIndex = 13;
	}

	changeZIndex = function(divID) {
		theDiv = document.getElementById(divID);
		stack = stack+1;
		theDiv.style.zIndex = stack;				
	}