var selectmenu=document.getElementById("products")
if(selectmenu) {
	selectmenu.onchange=function() { //run some code when "onchange" event fires
		var chosenoption=this.options[this.selectedIndex] //this refers to "selectmenu"
		if (chosenoption.value!="nothing"){
			location.replace(chosenoption.value, "", "") //open target site (based on option's value attr) in new window
		}
	}	
}