function fullScreen(theURL){

	pfwin = window.open(theURL,'wfull','fullscreen=no,scrollbars=no,width=625,height=325');

}

function hiddenScreen(theURL){

	phwin = window.open(theURL,'whidden','fullscreen=no,scrollbars=no,width=20,height=20,top=10000,left=10000');

}

function scrollScreen(theURL){

	pswin = window.open(theURL,'wscroll','fullscreen=no,scrollbars=yes,width=625,height=325');

}

function getlist(frm,vname){

	var len = frm.elements.length;
 	lst = "";

	for(var i=0;i<len;i++){

		if(frm.elements[i].name==vname && frm.elements[i].checked)

		lst += frm.elements[i].value + ",";

	}

	return (lst.length>0)?lst.substr(0,lst.length-1):"";

}

function check_except(frm,prefix_excepted,min_len){

	var len = frm.elements.length;

	for(var i=0;i<len;i++){

		if(frm.elements[i].name.indexOf(prefix_excepted)!=0 && frm.elements[i].value.length<min_len)

		return false;

	}

	return true;

}

function get_filetype(fname){

	return fname.substr(fname.lastIndexOf('.')+1);

}