var funnel1Area = document.getElementById("funnel1");
var ContainerWidth = funnel1Area.offsetWidth;
var funnel1 = document.createElement("CANVAS");
funnel1.width = ContainerWidth;
funnel1.height = funnel1.width * 4 / 5;
var funnel1Width = funnel1.width;
var funnel1Height = funnel1.height;
var part = funnel1Width/2 - 7;
var part2Offset = funnel1Width/2 + 7;
var ctx = funnel1.getContext("2d");
function checkParams(){
funnel1.width = ContainerWidth;
funnel1.height = funnel1.width * 4 / 5;
funnel1Width = funnel1.width;
funnel1Height = funnel1.height;
part = funnel1Width/2 - 7;
part2Offset = funnel1Width/2 + 7;
}