function conccalc01() {

calcwin = window.open("calcs/conccalcs/calcconc01.htm", "Concrete1","tool;bar=0,width=387,height=210,resizable=0,top=0,left=0");
}

function conccalc02() {

calcWindow = window.open("calcs/conccalcs/calcconc02.htm", "Concrete2","tool;bar=0,width=387,height=210,resizable=0,top=210,left=0");
}

function conccalc03() {

calcWindow = window.open("calcs/conccalcs/calcconc03.htm", "Concrete3","tool;bar=0,width=387,height=210,resizable=0,top=0,left=387");
}

function conccalc04() {

calcWindow = window.open("calcs/conccalcs/calcconc04.htm", "Concrete4","tool;bar=0,width=387,height=210,resizable=0,top=200,left=387");
}

function conccalc05() {

calcWindow = window.open("calcs/conccalcs/calcconc05.htm", "Concrete5","tool;bar=0,width=387,height=210,resizable=0,top=400,left=163");
}