function  marshallcostfunctions(cost_functions){
	for(var i=0;i<cost_functions.length;i++){
		if(cost_functions[i]==101) data[i]=SurfaceAbsVelMisfitEnum();
		if(cost_functions[i]==102) data[i]=SurfaceRelVelMisfitEnum();
		if(cost_functions[i]==103) data[i]=SurfaceLogVelMisfitEnum();
		if(cost_functions[i]==104) data[i]=SurfaceLogVxVyMisfitEnum();
		if(cost_functions[i]==105) data[i]=SurfaceAverageVelMisfitEnum();
		if(cost_functions[i]==201) data[i]=ThicknessAbsMisfitEnum();
		if(cost_functions[i]==501) data[i]=DragCoefficientAbsGradientEnum();
		if(cost_functions[i]==502) data[i]=RheologyBbarAbsGradientEnum();
		if(cost_functions[i]==503) data[i]=ThicknessAbsGradientEnum();
		if(cost_functions[i]==504) data[i]=ThicknessAlongGradientEnum();
		if(cost_functions[i]==505) data[i]=ThicknessAcrossGradientEnum();
		if(cost_functions[i]==506) data[i]=BalancethicknessMisfitEnum();
		if(cost_functions[i]==507) data[i]=RheologyBAbsGradientEnum();
		if(cost_functions[i]==601) data[i]=SurfaceAbsMisfitEnum();
	}
	return data;
}