if(document.images){
		mn_col1 = new Image
		mn_col2 = new Image
		mn_des1 = new Image
		mn_des2 = new Image
		mn_rev1 = new Image
		mn_rev2 = new Image
		mn_con1 = new Image
		mn_con2 = new Image
		mam1 = new Image
		mam2 = new Image
		mbi1 = new Image
		mbi2 = new Image
		mbr1 = new Image
		mbr2 = new Image
		mes1 = new Image
		mes2 = new Image
		mnu1 = new Image
		mnu2 = new Image
		mob1 = new Image
		mob2 = new Image
		mre1 = new Image
		mre2 = new Image
		msa1 = new Image
		msa2 = new Image
		msk1 = new Image
		msk2 = new Image
		
		mn_col1.src = "Imagens/mn_col1.gif"
		mn_col2.src = "Imagens/mn_col2.gif"
		mn_des1.src = "Imagens/mn_des1.gif"
		mn_des2.src = "Imagens/mn_des2.gif"
		mn_rev1.src = "Imagens/mn_rev1.gif"
		mn_rev2.src = "Imagens/mn_rev2.gif"
		mn_con1.src = "Imagens/mn_con1.gif"
		mn_con2.src = "Imagens/mn_con2.gif"
		mam1.src = "Imagens/mam1.gif"
		mam2.src = "Imagens/mam2.gif"
		mbi1.src = "Imagens/mbi1.gif"
		mbi2.src = "Imagens/mbi2.gif"
		mbr1.src = "Imagens/mbr1.gif"
		mbr2.src = "Imagens/mbr2.gif"
		mes1.src = "Imagens/mes1.gif"
		mes2.src = "Imagens/mes2.gif"
		mnu1.src = "Imagens/mnu1.gif"
		mnu2.src = "Imagens/mnu2.gif"
		mob1.src = "Imagens/mob1.gif"
		mob2.src = "Imagens/mob2.gif"
		mre1.src = "Imagens/mre1.gif"
		mre2.src = "Imagens/mre2.gif"
		msa1.src = "Imagens/msa1.gif"
		msa2.src = "Imagens/msa2.gif"
		msk1.src = "Imagens/msk1.gif"
		msk2.src = "Imagens/msk2.gif"
}
	
function troca(imgField,newImg){
		if(document.images){
			document[imgField].src = eval(newImg + ".src")
		}
}

//Não permite ver o fonte do código
function verfonte(){
	if (event.button==2){
		window.alert('Botão desabilitado')
	}
}
document.onmousedown=verfonte