function compute(num){
		var t=0;
		var formname = document.getElementById('frmcart_'+num); 
		var incval=parseInt(formname.incval.value);
		var sortname='sort'+num;
		var sortForm = document.getElementById(sortname); 
		var sortelements = document.getElementsByName('assort[]'); 
		var sortcount=0;
		var t=0;
		for (i = 0; i < sortelements.length; i++){ 				
			if (sortelements[i].parentNode.parentNode.parentNode.parentNode.id == sortname) 
			{ 	
				var sortval=parseInt(sortelements[i].value);
				
				if((sortval!="" &&sortval>0 )&& (sortval < incval)){
						sortelements[i].value='';
						sortelements[i].focus();
						//alert('yawaaaaa');
						alert('Assortment Value must be equal to '+incval+' or must be divisible by '+incval);
						return false;
				}
				else{
					if(isNaN(sortval) || sortval==""){
						sortval=0;				
					}
					var y=sortval % incval;		
					//alert(y);
					if(y>=1){	
						sortelements[i].value='';
						sortelements[i].focus();
						alert('Assortment Value must be equal to '+incval+' or must be divisible by '+incval);
						return false;
					}
				}		
				t=parseInt(t)+sortval;					
				sortcount++; 			
			} 
			
		}
	document.getElementById('totalsortitems_'+num).value=t;	
}

function checkAssort(num){
		var t=document.getElementById('totalsortitems_'+num).value;
		var totalassort=document.getElementById('totalitems_'+num).value;
		if(t=='0' || t==totalassort){
			return true;
		}
		else if(t>='1' && t<totalassort){
			alert('Please check your assortments, total items should be equal to total assortment value');
			return false;
		}
		else{
			alert('Please check your assortments, total items should be equal to total assortment value.');
			return false;
		}
}//end function
	
function getTotal(num){
	var total=0;
	var qty=0;
	var items=0;
	var itemcontname='itemcont'+num;
	var objForm = document.getElementById(itemcontname); 
	var qtyelements = document.getElementsByName('qty[]');	
	var pairelements = document.getElementsByName('pairpercase[]'); 
	var elementcount = 0; 	
	for (i = 0; i < qtyelements.length; i++) 
	{ 		
	 if (qtyelements[i].parentNode.parentNode.parentNode.parentNode.id == itemcontname) 
	 { 
			items=pairelements[i].value;
			qty=qtyelements[i].value;			
			if(isNaN(qty) || qty==""){
				qty=0;				
			}
			var total=total+(parseInt(qty)*parseInt(items));	
		   elementcount++; 
	 } 
	} 
	
	document.getElementById('totalitems_'+num).value=total;
}