var csellarg = new Array();
function show_prev_next(act_div,next_div,ctype,limiter) {
	
	var max_rows = document.getElementById('max_rows_' + ctype).value;
	var div_counter = limiter;
	if(next_div == 1) { var cur_rows = 0; } else {
		var cur_rows = parseInt(div_counter)*parseInt(next_div);
	}
	
	if(next_div <= 0) { next_div = 1; }
	new Effect.Fade(document.getElementById('suggest-image-box_' + ctype +'_'+act_div), {duration:.4});
	window.setTimeout("new Effect.Appear(document.getElementById('suggest-image-box_" + ctype +"_"+next_div+"'), {duration:.4})",450);
		
	document.getElementById('cur_block_' + ctype).value =  parseInt(next_div);
	if((parseInt(cur_rows))>= parseInt(max_rows)) { 
		document.getElementById('next_but_' + ctype).disabled = true;
		document.getElementById('next_but_' + ctype).src = 'img/csell/next_off.gif';
	} else {
		document.getElementById('next_but_' + ctype).disabled = false;
		document.getElementById('next_but_' + ctype).src = 'img/csell/next.gif';
	}

	if(next_div > 1 ){
		document.getElementById('prev_but_' + ctype).disabled = false;
		document.getElementById('prev_but_' + ctype).src = 'img/csell/previous.gif';
	} else {
		document.getElementById('prev_but_' + ctype).disabled = true;
		document.getElementById('prev_but_' + ctype).src = 'img/csell/previous_off.gif';		
	}
}
	
function getCurBlock(calc,ctype){
	if(!csellarg[ctype]) {
		csellarg[ctype] = 1;
		document.getElementById('cur_block_' + ctype).value = 1;
	} 
	var cur_block = document.getElementById('cur_block_' + ctype).value;
	var next_block = parseInt(cur_block) + parseInt(calc);
	
	return next_block;
}