function open_window1(url){
		  awindow = window.open(url,"window","width=430,height=390,scrollbars=no")
		 }
	

		function open_window2(url){
		  awindow = window.open(url,"window","width=475,height=440,scrollbars=no")
		 }
	
		function open_window3(url){
		  awindow = window.open(url,"window","width=575,height=524,scrollbars=no")
		 }