// INIT 
$(document).ready(function(){	
						   
			checkButtons(null,null,null,'init');
			
			$('#slideNext').click(function(){
				PslideRight();						   
			});
			
			$('#slidePrev').click(function(){
				PslideLeft();						   
			});
		});

//FUNCTIONS 

function PslideRight(){
	var speed = 250;
	var cLen = parseInt($('#slidercontainer').width());
	var sLen = parseInt($('#slidertable').width());
	var sLeft = parseInt($('#slider').position().left) - 17;
	var endPos = parseInt((sLen - cLen) - 17)*(-1);
	var imgW = parseInt($('.pimgslide').width());
	
	if (sLeft > endPos){
    	$('#slider').animate({"left":"-=" + imgW + "px"}, speed, function(){checkButtons(sLeft, endPos, imgW, 'right')} );
	}
}




function PslideLeft(){
	var speed = 250;
	var cLen = parseInt($('#slidercontainer').width());
	var sLen = parseInt($('#slidertable').width());
	var sLeft = parseInt($('#slider').position().left) - 17;
	var endPos = -17;
	var imgW = parseInt($('.pimgslide').width());
	
	
	if(sLeft < endPos){
		$('#slider').animate({"left":"+=" + imgW + "px"}, speed, function(){checkButtons(sLeft, endPos, imgW, 'left')});
	}	
}

function checkButtons(l, end, iW, dir){

	$('#slidePrev').show();
	$('#slideNext').show();

	if(dir == 'init'){
		$('#slidePrev').hide();
		
		if(parseInt($('#slidertable').width()) <= parseInt($('#slidercontainer').width())){
			$('#slideNext').hide();																			   
		}
	}
	
	//slideLeftCheck
	//alert ("l:" + l);
	//alert ("iW:" + iW);
	
	if(((l+iW) == end)&&(dir == 'left')){
		$('#slidePrev').hide();
	}
	//slideRightCheck
	if(((l-iW)<end) && (dir == 'right')){
		
		$('#slideNext').hide();
	}
}