// JavaScript Document
function dropLogo(name,direction){
	if(direction == "drop"){
		document[name].src='/images/'+name+'_2.jpg';
	}else{
		document[name].src='/images/'+name+'_1.jpg';
	}
}

function checkForNeg(field){
myVal = document.printsheet[field].value;
	if(isNaN(myVal)){
		document.printsheet[field].value = "0";
	}
	
	if(myVal.indexOf("-") > -1){
		document.printsheet[field].value = eval(myVal*-1);	
	}
	
	if(myVal == "" || myVal == " " || myVal == "  " || myVal == "   "){
		document.printsheet[field].value = "0";
	}
}