//#############################################################
//	RemoveItemsbelow V1.0 - 31/08/2010
//	Remove any items whose width and height is below the values set in the dialog fields
//	Enter width and height as single numbers without unit (ie 5 and not 5mm)
//	Tested on Illustrator CS4
//	Bugs and feedbacks : loic(dot)aigon(at)gmail(dot)com
//#############################################################


function removeItemsBelow(doc,w,h){
	
	w = Number(w);
	h=Number(h);
	if(w==0 && h==0){
		return false
	}
	switch(doc.rulerUnits){
		case RulerUnits.Picas:
			w=w*12;
			h=h*12;
			break;
		case RulerUnits.Inches:
			w=w*72;
			h=h*72;
			break;
		case RulerUnits.Millimeters:
			w=w*2.834;
			h=h*2.834;
			break;
		case RulerUnits.Centimeters:
			w=w*28.347;
			h=h*28.347;
			break;
	}
	var pi=doc.pathItems;
	var piLg = pi.length;
	var c1, c2;
	for(var i =piLg-1; i>=0; i--){
		var piw = pi[i].width;
		var pih = pi[i].height;
		var c1 = (w!=0)? piw<w: piw==piw;
		var c2= (h!=0)? pih<h : pih==pih;
		if(c1 && c2){
			pi[i].remove();
		}
	}
}

Application.prototype.main = function(){
	if(app.documents.length==0){
		alert("No documents open !");
		return false
	}

	var doc = app.activeDocument;
	if(doc.pathItems.length>0){
		removeWindow(doc);
	}
}

function removeWindow(doc){
	var w = new Window('dialog',"",undefined);
	w.preferredSize = [100,150];
	w.orientation='column';

	w.add('statictext',undefined,'Remove items below');
	var widthGp = w.add('group');
	widthGp.orientation='row';
	widthGp.add('statictext',undefined,'Width');
	var enteredW = widthGp.add('edittext');
	enteredW.preferredSize.width=50;

	enteredW.onChange = function(){
		if(isNaN(enteredW.text)){
			alert("No valid number");
			enteredW.text="";
			enteredW.active=true;
		}
	}

	var heightGp = w.add('group');
	heightGp.orientation='row';
	heightGp.add('statictext',undefined,'Height');
	var enteredH = heightGp.add('edittext');
	enteredH.preferredSize.width=50;
	enteredH.onChange = function(){
		if(isNaN(enteredW.text)){
			alert("No valid number");
			enteredH.text="";
			enteredH.active=true;
		}
	}	

	var btnGp = w.add('group');
	var btn = btnGp.add('button',undefined,'Remove');

	btn.onClick = function(){
		removeItemsBelow(doc,enteredW.text,enteredH.text);
		w.close();
	}
	w.add('statictext',undefined,'www.loicaigon.com');
	w.show();
}

app.main();