function changeprice1(which){switch (which) {case '3 Months': document.forms.paypal1.elements.amount.value='10.99';document.getElementById("pricediv1").innerHTML = '£10.99'; break;case '6 Months': document.forms.paypal1.elements.amount.value='18.50';document.getElementById("pricediv1").innerHTML = '£18.50'; break; } }Frontline Spot On CatFRONTLINE Spot On for cats is a treatment for cats that provides long-lasting protection against fleas and ticks, and controls biting lice, it is available in 3 and 6 month packs.Legal Category: NFA-VPS £10.99Quantity: 12345678910Options: Please select ...3 Months6 Months function changeprice2(which){switch (which) {case '3 Months': document.forms.paypal2.elements.amount.value='14.10';document.getElementById("pricediv2").innerHTML = '£14.10'; break;case '6 Months': document.forms.paypal2.elements.amount.value='22.95';document.getElementById("pricediv2").innerHTML = '£22.95'; break; } }Frontline Spot On Small DogFRONTLINE Spot On for dogs weighing 2kgs to 10 kgs is a treatment for small dogs that provides long-lasting protection against fleas and ticks, and controls biting lice.  Available in 3 and 6 month packs.Legal Category: NFA-VPS £14.10Quantity: 12345678910Options: Please select ...3 Months6 Months function changeprice3(which){switch (which) {case '3 Months': document.forms.paypal3.elements.amount.value='15.40';document.getElementById("pricediv3").innerHTML = '£15.40'; break;case '6 Months': document.forms.paypal3.elements.amount.value='24.80';document.getElementById("pricediv3").innerHTML = '£24.80'; break; } }Frontline Spot On Medium DogFRONTLINE Spot On for dogs weighing 10kgs to 20kgs is a treatment for medium sized dogs that provides long-lasting protection against fleas and ticks, and controls biting lice.  Available in 3 and 6 month packs.Legal Category: NFA-VPS £15.40Quantity: 12345678910Options: Please select ...3 Months6 Months function changeprice4(which){switch (which) {case '3 Months': document.forms.paypal4.elements.amount.value='16.85';document.getElementById("pricediv4").innerHTML = '£16.85'; break;case '6 Months': document.forms.paypal4.elements.amount.value='27.25';document.getElementById("pricediv4").innerHTML = '£27.25'; break; } }Frontline Spot On Large DogFRONTLINE Spot On for dogs weighing 20kgs to 40kgs is a treatment for larger dogs that provides long-lasting protection against fleas and ticks, and controls biting lice.  Available in 3 and 6 month packs.Legal Category: NFA-VPS £16.85Quantity: 12345678910Options: Please select ...3 Months6 Months function changeprice5(which){switch (which) {case '3 Months': document.forms.paypal5.elements.amount.value='19.75';document.getElementById("pricediv5").innerHTML = '£19.75'; break;case '6 Months': document.forms.paypal5.elements.amount.value='31.95';document.getElementById("pricediv5").innerHTML = '£31.95'; break; } }Frontline Spot On Xtra Large DogFRONTLINE Spot On for dogs weighing 40kgs to 60kgs is a treatment for heavy or xtra large breed dogs that provides long-lasting protection against fleas and ticks, and controls biting lice.  Available in 3 and 6 month packs.Legal Category: NFA-VPS £19.75Quantity: 12345678910Options: Please select ...3 Months6 Months