function openpopup1(){
var popurl="http://www.ethbridge.com/kitap/accesories/conventionslist.htm"
pops=window.open(popurl,"","top=50,width=420,height=580,")
}
function openpopup2(){
var popurl="http://www.ethbridge.com/kitap/accesories/approacheslist.htm"
pops=window.open(popurl,"","top=50,width=475,height=580,")
}
function openpopup3(){
var popurl="http://www.ethbridge.com/kitap/accesories/artificialopenings.htm"
pops=window.open(popurl,"","top=50,width=475,height=580,")
}
function openpopup4(){
var popurl="http://www.ethbridge.com/evdeogren/accesories/competitivebidding.html"
pops=window.open(popurl,"","top=50,width=475,height=580,")
}