var x = 0
mySearch = location.search.substr(1).split("?")
if (mySearch == "pack2") {
alert(mySearch);
} else {

}

I have passed the variable okay to next page and then I can read the variabe I have passed and
display it in messege box using the code above. But i want it to instead of alerting to perform
another javascript function. I have tried

var x = 0
mySearch = location.search.substr(1).split("?")
if (mySearch == "pack2") {
function()
} else {

}

but it doesnt work can any help me please?