function build_sqlpre(what){


	var tabellen = new Array();
	var what = document.form.what.value;
	var temp = what.split("\.");
	tabellen[0] = new Array();
	tabellen[0][temp[0]] = 1;


	var where = '';


	var from = '';

	for(i=0;i<document.form.os_accessable.length;i++){
		if(i>0){
			where += "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B><I><FONT COLOR=\"#FF0000\">AND</FONT></B></I><BR>";
		}
		where += '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'+document.form.os_accessable.options[i].text+'<BR>';
		var temp = document.form.os_accessable.options[i].text.split(" = ");
		for(j=0;j<temp.length;j++){
			var temp2 = temp[j].split("\.");
			tabellen[0][temp2[0]] = 1;
		}
	}



	var i=0;
	for (var tabelle in tabellen[0]){
		if(i>0){
			from += ", ";
		}
		from += tabelle;
		i++;
	}


	document.getElementById('sqlpreview').innerHTML = '<B><I>SELECT</B></I><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'+what+'<BR><B><I>FROM</I></B><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'+from+'<BR><B><I>WHERE</B></I><BR>'+where;
	

}