function changeprice1(which){switch (which) {case '50 plant kit': document.forms.paypal1.elements.amount.value='599.99';document.getElementById("pricediv1").innerHTML = '£599.99'; break;case '100 plant kit': document.forms.paypal1.elements.amount.value='1149.99';document.getElementById("pricediv1").innerHTML = '£1149.99'; break;case '150 plant kit': document.forms.paypal1.elements.amount.value='1499.99';document.getElementById("pricediv1").innerHTML = '£1499.99'; break;case '200 plant kit': document.forms.paypal1.elements.amount.value='1999.99';document.getElementById("pricediv1").innerHTML = '£1999.99'; break; } }THE PI WALLEach plant has its own purpose-built, patented 3.5 litre container, which is equipped with drainage holes and a basket to prevent blockages caused by the growing medium. The generous volume of these patented growing containers allows the plants to develop a strong root system. This improves the plants' ability to absorb nutrients. This method results in larger and more robust plants than systems that use under-dimensioned containers. £599.99 (+ postage: £49.99) Quantity: 12345678910Options: Please select ...50 plant kit100 plant kit150 plant kit200 plant kit