total = 0;
City1 = 1;
City2 = 1;
City3 = 1;
City4 = 1;
City5 = 1;
City6 = 1;
City7 = 1;
City8 = 1;
City9 = 1;
City10 = 1;

function addUp(num, x)
	 {	
	 	if (x == "City1" && City1 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City1 = 0;
			return City1;
		}
		if (x == "Cityt1" && City1 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City1 = 1;
		}
		if (x == "City2" && City2 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City2 = 0;
			return City2;
		}
		if (x == "City2" && City2 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City2 = 1;
		}
		if (x == "City3" && City3 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City3 = 0;
			return City3;
		}
		if (x == "City3" && City3 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City3 = 1;
		}
		if (x == "City4" && City4 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City4 = 0;
			return City4;
		}
		if (x == "City4" && City4 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City4 = 1;
		}
		if (x == "City5" && City5 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City5 = 0;
			return City5;
		}
		if (x == "City5" && City5 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City5 = 1;
		}
		if (x == "City6" && City6 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City6 = 0;
			return City6;
		}
		if (x == "City6" && City6 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City6 = 1;
		}
		if (x == "City7" && City7 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City7 = 0;
			return City7;
		}
		if (x == "City7" && City7 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City7 = 1;
		}
		if (x == "City8" && City8 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City8 = 0;
			return City8;
		}
		if (x == "City8" && City8 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City8 = 1;
		}
		if (x == "City9" && City9 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City9 = 0;
			return City9;
		}
		if (x == "City9" && City9 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City9 = 1;
		}
		if (x == "City10" && City10 == 1) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo + numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City10 = 0;
			return City10;
		}
		if (x == "City10" && City10 == 0) {
			temp = document.theForm.TotalCities.value;
		 	tempo = parseInt(temp);
		 	numo = parseInt(num);
			nwTemp = tempo - numo;
		 	document.theForm.TotalCities.value = nwTemp;
			City10 = 1;
		}
	}