function checkWheat(num){	
			
			if (isNaN(num) == true){
				document.forms[0].wheatArea.focus();
				alert("Invalid character has been entered into wheat crop area\nplease enter only numerical characters");
				return false; 
			}else{
				//Do nothing
			}
	}
	
	
	function checkBarley(num){
	
			if (isNaN(num) == true){
				document.forms[0].barleyArea.focus();
				alert("Invalid character has been entered into barley crop area\nplease enter only numerical characters");
				return false; 
			}else{
				//Do nothing
			}
	}
	
	
	function checkWheatPrice(num){	
			
			if (isNaN(num) == true){
				document.forms[0].wheatPrice.focus();
				alert("Invalid character has been entered into wheat price\nplease enter only numerical characters");
				return false; 
			}else{
				//Do nothing
			}
	}
	
	
	function checkBarleyPrice(num){
	
			if (isNaN(num) == true){
				document.forms[0].barleyPrice.focus();
				alert("Invalid character has been entered into barley price\nplease enter only numerical characters");
				return false; 
			}else{
				//Do nothing
			}
	}	
	
	
	
	
	function checkWheatYield(num){	
			
			if (isNaN(num) == true){
				document.forms[0].wheatYield.focus();
				alert("Invalid character has been entered into wheat yield\nplease enter only numerical characters");
				return false; 
			}else{
				//Do nothing
			}
	}
	
	
	function checkBarleyYield(num){
	
			if (isNaN(num) == true){
				document.forms[0].barleyYield.focus();
				alert("Invalid character has been entered into barley yield\nplease enter only numerical characters");
				return false; 
			}else{
				//Do nothing
			}
	}	
		
	
		
	
	
	function checkForm(){
		
	
			
		//check soil type	
		var isChecked = false;
		for (var i = 0; i < document.forms[0].soiltype.length; i++) { 
  		 	if (document.forms[0].soiltype[i].checked == true){
  		 		var isChecked = true;
  		 	}
  		 	else{
  		 		//do nothing
  		 	}	
		}
		if (isChecked == false){
			alert("Please select your soil type (#2)");
			return false;
		}
		
		
		
		//check slug history
		var isChecked = false;
		for (var i = 0; i < document.forms[0].slugRisk.length; i++) { 
  		 	if (document.forms[0].slugRisk[i].checked == true){
  		 		var isChecked = true;
  		 	}
  		 	else{
  		 		//do nothing
  		 	}	
		}
		if (isChecked == false){
			alert("Please select your previous slug risk (#2)");
			return false;
		}
		
		
		
		
		//check BYDV history
		var isChecked = false;
		for (var i = 0; i < document.forms[0].bydvRisk.length; i++) { 
  		 	if (document.forms[0].bydvRisk[i].checked == true){
  		 		var isChecked = true;
  		 	}
  		 	else{
  		 		//do nothing
  		 	}	
		}
		if (isChecked == false){
			alert("Please select your previous BYDV risk (#3)");
			return false;
		}		
		
		
			
		
		//check wireworm
		var isChecked = false;
		for (var i = 0; i < document.forms[0].wireworm.length; i++) { 
  		 	if (document.forms[0].wireworm[i].checked == true){
  		 		var isChecked = true;
  		 	}
  		 	else{
  		 		//do nothing
  		 	}	
		}
		if (isChecked == false){
			alert("Please make selection for wireworm question (#4)");
			return false;
		}			
		
		
		
		//check wheatBulb
		//var isChecked = false;
		//for (var i = 0; i < document.forms[0].wheatbulb.length; i++) { 
  	//	 	if (document.forms[0].wheatbulb[i].checked == true){
  	//	 		var isChecked = true;
  	//	 	}
  //		 	else{
  //		 		//do nothing
  //		 	}	
	//	}
//		if (isChecked == false){
//			alert("Please make selection for wheatbulb question (#5)");
//			return false;
//		}				
		
		
		//check foliar
		//var isChecked = false;
		//for (var i = 0; i < document.forms[0].foliar.length; i++) { 
  //		 	if (document.forms[0].foliar[i].checked == true){
  //		 		var isChecked = true;
  //		 	}
  //		 	else{
  //		 		//do nothing
 // 		 	}	
//		}
//		if (isChecked == false){
//			alert("Please make selection for early foliar question (#6)");
//			return false;
//		}			
		
		
		//check grass pasture
		//var isChecked = false;
		//for (var i = 0; i < document.forms[0].drilling.length; i++) { 
  //		 	if (document.forms[0].drilling[i].checked == true){
 // 		 		var isChecked = true;
//  		 	}
//  		 	else{
//  		 		//do nothing
//  		 	}	
//		}
//		if (isChecked == false){
//			alert("Please make selection for grass pasture question (#7)");
//			return false;
//		}		
	
		
		
		
		if((document.forms[0].wheatArea.value == "") && (document.forms[0].barleyArea.value == "")){
			alert("Please enter an area in hectares for Wheat/Barley");
			return false;
		}
		
		
		
		if(document.forms[0].wheatArea.value != ""){

			
			if (document.forms[0].wheatPrevious.options[document.forms[0].wheatPrevious.selectedIndex].value == -1){
				alert("Please select your previous crop for wheat (#8)");
			  return false;
			}
			

			if(document.forms[0].wheatPrice.value == ""){
				alert("Please enter your expected crop price for wheat (#8)");
				return false;
			}


			if(document.forms[0].wheatYield.value == ""){
				alert("Please enter your expected yield for wheat (#8)");
				return false;
			}	
			
			
			var isChecked = false;
			for (var i = 0; i < document.forms[0].wheat.length; i++) { 
  			 	if (document.forms[0].wheat[i].checked == true){
  			 		var isChecked = true;
  			 	}
  			 	else{
  			 		//do nothing
  			 	}	
			}
			if (isChecked == false){
				alert("Please select your wheat drilling date (#8)");
				return false;
			}	
			
			var isChecked = false;
			for (var i = 0; i < document.forms[0].wheatSeed.length; i++) { 
  			 	if (document.forms[0].wheatSeed[i].checked == true){
  			 		var isChecked = true;
  			 	}
  			 	else{
  			 		//do nothing
  			 	}	
			}
			if (isChecked == false){
				alert("Please select your wheat seed rate (#8)");
				return false;
			}						
			
			
		}
		
		
		if(document.forms[0].barleyArea.value != ""){

			
			if (document.forms[0].barleyPrevious.options[document.forms[0].barleyPrevious.selectedIndex].value == -1){
				alert("Please select your previous crop for barley (#8)");
			  return false;
			}
			

			if(document.forms[0].barleyPrice.value == ""){
				alert("Please enter your expected crop price for barley (#8)");
				return false;
			}


			if(document.forms[0].barleyYield.value == ""){
				alert("Please enter your expected yield for barley (#8)");
				return false;
			}	
			
			
			var isChecked = false;
			for (var i = 0; i < document.forms[0].barley.length; i++) { 
  			 	if (document.forms[0].barley[i].checked == true){
  			 		var isChecked = true;
  			 	}
  			 	else{
  			 		//do nothing
  			 	}	
			}
			if (isChecked == false){
				alert("Please select your barley drilling date (#8)");
				return false;
			}	
			
			var isChecked = false;
			for (var i = 0; i < document.forms[0].barleySeed.length; i++) { 
  			 	if (document.forms[0].barleySeed[i].checked == true){
  			 		var isChecked = true;
  			 	}
  			 	else{
  			 		//do nothing
  			 	}	
			}
			if (isChecked == false){
				alert("Please select your barley seed rate (#8)");
				return false;
			}						
			
		}		
		

		

		
		

			
			return true;

	
			
	}